ETERNA - Service Manuals
59 manuals available for download
Discover comprehensive technical documentation for ETERNA timepieces, a prestigious Swiss watchmaker renowned for precision mechanical movements. Our extensive catalog includes service manuals, repair guides, and detailed parts lists covering decades of ETERNA calibers—from vintage mechanical movements to modern complications. Whether you're a professional watchmaker seeking workshop documentation, a technician needing troubleshooting guides, or an enthusiast looking for owner's manuals and maintenance information, you'll find professional-grade PDF downloads that provide the specifications and schematics necessary for authentic service and restoration work.
Eterna 12821 Movement Technical Data and Parts List
Eterna 12821 automatic watch movement technical data and parts identification reference. This document provides a detailed visual breakdown of the Eterna 12821 caliber operating at 28,800 beats per hour, with numbered component references for identification and ordering. Features the complete parts diagram showing balance assembly, jewels, screws, springs, gears, and all mechanical components with their reference numbers. Original supplementary technical documentation from 1973/74. Essential reference tool for technicians and watchmakers requiring accurate component identification and specifications for this movement.
Eterna 1404 Watch Movement Parts List
Technical parts documentation for the Eterna caliber 1404 watch movement, providing detailed reference material for repair, maintenance, and assembly work. Features exploded views and numbered component diagrams that clearly identify each part of this precision movement. Specifications include 18000 vibrations per hour, 3.80 mm height, and 19.20 mm diameter (5¼''). The parts list includes comprehensive catalog references with assembly cross-references, making it essential for watchmakers, technicians, and hobbyists performing service work or restoration on this caliber. PDF download includes full parts nomenclature and detailed component illustrations.
Eterna 1448 and 1448 UX Watch Movement Parts List
Spare parts diagram and component list for Eterna caliber 1448 and 1448 UX watch movements. This parts list shows the main plate assembly, dial ring, and all individual components with their reference numbers for accurate identification and ordering. Essential reference material for watchmakers and technicians performing maintenance or repair work on these movements. Specifications: 11.5 lignes (25.60 mm) diameter, 4.85 mm height, 18000 vph beat rate.
Eterna Cal. 12660 Movement Parts List and Schematic
Eterna Cal. 12660 movement technical data and parts list with component identification. Illustrated parts catalog with numbered components and their corresponding illustrations. Specifications: 7 3/4 inches diameter (17.20 mm), 3.50 mm thickness, 28,800 vibrations per hour. Essential reference for watchmakers requiring component identification and parts sourcing for this caliber.
Eterna Cal. 12671 & 12678 Spare Parts Diagram
Spare parts diagram and component identification for Eterna automatic watch movements caliber 12671 and 12678. Features an exploded view of the complete movement with numbered component callouts, detailed breakdown of the main plate assembly, and a comprehensive parts list cross-referenced with manufacturer part numbers. Essential reference for watchmakers and technicians performing repair, maintenance, or restoration work on these movements.
Eterna Cal. 12804 Movement Parts List
Complete parts list and exploded diagrams for the Eterna caliber 12804 mechanical movement. This manual provides detailed reference numbering for the main plate, dial, balance wheel, escapement mechanism, and all individual component parts essential for service and repair work. Specifications: 11.5 lignes, 25.60 mm diameter, 3.35 mm height, 28,800 vibrations per hour. An indispensable workshop reference for technicians maintaining or restoring watches fitted with this movement.
Eterna Cal. 1411 Mechanical Movement Parts Diagram
Complete parts list and technical reference for the Eterna Cal. 1411 mechanical watch movement. This technical data sheet presents exploded views of the assembled movement, detailed breakdown of the balance wheel assembly, mainspring, escapement mechanism, and all numbered component parts with their corresponding references. Includes specifications for both Model I and Model II configurations. The parts list enables precise identification and sourcing of replacement components.
Eterna Cal. 1422 and 1424 Movement Parts Diagram
Technical service documentation providing detailed exploded views and component identification for Eterna caliber 1422 and 1424 automatic watch movements. Includes comprehensive part numbers for the main plate, rotor assembly, and mechanical components with systematic cross-references to related caliber 1448 and 1411 documentation. Essential reference for watchmakers and repair technicians working on these movement calibers.
Eterna Cal. 1435 Movement Parts List
Comprehensive parts list and exploded-view diagrams for the Eterna Cal. 1435 watch movement. Each component—from the main plate and escape wheel to hairspring, balance staff, and jewel settings—is individually numbered with precise reference designations and dimensional specifications. Essential reference material for watchmakers performing service, repair, and restoration work on this caliber. Detailed mechanical breakdown allows technicians to identify every part, understand assembly sequences, and source replacements with confidence.
Eterna Cal. 1462 Parts List and Technical Drawings
Technical documentation for the Eterna caliber 1462 movement, presenting exploded component views and detailed numbered parts diagrams essential for service, repair, and restoration work. This parts list and technical drawings reference covers the complete movement architecture including mainplate assembly, escapement mechanism, gear train configuration, and finishing components. Movement specifications: 6¾ ligne diameter (15.30 mm), 3.30 mm thickness, 21,600 vibrations per hour. Intended for watchmakers and technicians performing maintenance, disassembly, and reassembly of this caliber.
Eterna Cal. 1478 and 1479 Movement Parts List
Technical service parts list for Eterna caliber 1478 and 1479 automatic watch movements. Features detailed exploded diagrams identifying every component in both caliber variants, with complete part numbers and specifications for watchmakers and technicians. Covers diameter tolerances (27.60mm and 29.00mm), movement height (5.20mm), and operating frequency (21,600 vph). Essential reference for movement assembly, disassembly, and component sourcing during repair and maintenance work.
Eterna Cal. 1492 Watch Movement Parts List
Technical parts list and mechanical drawings for the Eterna Cal. 1492 watch movement. This documentation provides detailed schematics of the complete caliber with precision engineering drawings showing top and bottom views, partial assembly configurations, and individually numbered components essential for service, repair, and restoration work. The parts list identifies critical components including the mainplate (100), balance cock (121/3), escape wheel (182), balance wheel (225), along with screws, jewels, and other mechanical elements. Specifications: movement diameter 29.50 mm, thickness 6.95 mm, frequency 21,600 vibrations per hour. An indispensable reference for watchmakers and technicians performing maintenance or repair on this caliber.
Eterna Cal. 1512 Movement Technical Specifications
Technical specifications sheet for the Eterna caliber 1512 automatic watch movement. Provides precise movement dimensions of 29.00 mm (13''') in diameter and 4.60 mm in height, with an operating frequency of 36,000 beats per hour. The document includes detailed front and back photographs of the complete assembled movement, serving as essential reference material for watchmakers performing service, repair, or maintenance work on this caliber. Component parts list references part numbers 926, 166, and 5166, with cross-reference to caliber 1511 spare parts availability. Ideal for anyone working with Eterna movements requiring technical documentation and parts identification.
Eterna Cal. 1521 and 1522 Movement Parts List
Parts list and technical reference for Eterna caliber 1521 and 1522 automatic watch movements. The caliber 1521 is an 11.5 ligne movement measuring 25.60 mm in diameter with a 4.60 mm height, operating at 36,000 vibrations per hour. The caliber 1522 is a 13 ligne movement measuring 29.00 mm in diameter with a 4.60 mm height, also operating at 36,000 vibrations per hour. This technical documentation features numbered component illustrations and dial designs for both movements, providing essential identification and reference for watchmakers and technicians servicing these manual wind calibers.
Eterna Caliber 12801 Movement - Parts Breakdown
Technical data and parts list for the Eterna caliber 12801 watch movement. Includes detailed exploded views of the movement assembly with numbered components and reference diagrams. Features a comprehensive parts catalog with caliber specifications: 11½''' (25.60 mm) diameter, 3.35 mm height, 28,800 vibrations per hour. Essential reference documentation for identifying and sourcing components for this caliber.
Eterna caliber 1401 parts list and movement diagrams
Comprehensive parts list and movement diagrams for the Eterna caliber 1401 automatic watch movement. Covers two execution variants with exploded-view illustrations showing every component in detail. Includes complete specifications — 7 1/4 lignes, 5.30 mm height, 18,000 vibrations per hour — alongside cross-referenced part numbers for all screws, hairsprings, jewels, and mechanical assemblies. Essential technical reference for service technicians, horologists, and movement specialists needing to identify, source, or order original Eterna components for this mid-range automatic caliber.
Eterna Caliber 1402, 1403 Spare Parts Diagram
Spare parts diagram and component specifications for Eterna caliber 1402 and 1403 automatic watch movements. This technical reference details balance wheels, rotors, escapement assemblies, and miscellaneous screws with numbered part identifications. The comprehensive parts list format enables accurate component sourcing and assembly verification during repairs, servicing, or restoration work on these precision movements.
Eterna Caliber 1405 Watch Movement Parts List
Technical Data and Parts List for the Eterna Caliber 1405 mechanical watch movement. This parts documentation provides numbered component diagrams and exploded views for identifying individual components. Covers the balance wheel assembly, mainplate, intermediate wheels, escapement mechanism, and all related subassemblies (100, 105, 110, 110/15R, 110/17R, 121.5, 125). The detailed parts catalog includes screw references (5101-5443) and wheel components (603/8-654). Essential reference for watchmakers and technicians working with Eterna Caliber 1405 movements.
Eterna Caliber 1407 Parts List and Exploded Views
Technical parts list and exploded mechanical diagrams for the Eterna caliber 1407 automatic movement. This documentation provides a complete numbered inventory of internal components with exploded views showing the assembly structure of each part within the movement. Specifications include dial diameter of 11.5 lines (25.60 mm), movement thickness of 3.60 mm, and balance wheel frequency of 18,000 vibrations per hour. The diagrams detail all screws, springs, and mechanical assemblies. Also references the related calibers 1436 and 1487.
Eterna Caliber 1408 Parts List and Exploded Views
Technical parts documentation and service reference for the Eterna Caliber 1408 movement. This workshop manual provides numbered component references throughout, detailed exploded views showing the disassembly and arrangement of movement plates and subassemblies, and a complete parts list with full technical specifications including movement size (11.5 lignes, 25.60 mm diameter, 4.50 mm thickness) and rate (18,000 vibrations per hour). Illustrated sections cover individual mechanical elements—screws, wheels, springs, pivots, jewels, and other internal components—each keyed to its reference number for accurate identification during repair, service, or parts replacement. Essential for watchmakers and technicians performing maintenance or restoration work on this caliber.
Eterna Caliber 1412 & 1414 Movement Parts List
Technical parts documentation for Eterna caliber 1412 and 1414 watch movements. This service manual provides movement specifications (12.5" and 13" diameter, 5.60 mm thickness, 18,000 vibrations per hour), detailed exploded views of the complete movement assembly, and a comprehensive numbered parts list identifying all mechanical components including the escape wheel, balance wheel, balance cock, jeweled pivot holes, screws, and other precision parts essential for repair, maintenance, and restoration work.
Eterna Caliber 1416 and 1421 Movement Specifications
Technical specification sheet for Eterna automatic watch movements caliber 1416 and 1421. Includes complete diameter and thickness measurements (30.60 mm / 13½" for cal. 1416; 25.60 mm / 11¼" for cal. 1421), height measurements (5.60 mm and 5.95 mm respectively), operating frequency of 18,000 vibrations per hour, and detailed exploded views of internal movement components with precisely numbered parts diagrams. Essential technical reference for watchmakers, technicians, and collectors requiring authentic Eterna movement data.
Eterna Caliber 1417 Watch Movement Parts List
Technical parts list for the Eterna Caliber 1417 watch movement. This comprehensive parts diagram details the complete mechanical assembly with movement specifications (13.50 mm diameter, 3.40 mm thickness, 21,600 vibrations per hour) and provides a complete numbered breakdown of all components. An essential reference guide for watchmakers identifying, sourcing, and ordering parts for this caliber.
Eterna Caliber 1418 Movement - Parts List
Technical parts list and component diagram for the Eterna Caliber 1418 mechanical watch movement, featuring detailed numbered references for all internal components. The documentation shows the main plate and bridge assembly operating at 21,600 vibrations per hour, with exploded views illustrating the arrangement of wheels, springs, screws, and fasteners. This parts reference guide is essential for watchmakers and technicians performing maintenance, assembly, or restoration work on Caliber 1418 movements.
Eterna Caliber 1419 Technical Data and Parts List
Eterna Caliber 1419 technical parts list and component diagram — essential reference for identifying components and ordering replacement parts for this automatic watch movement. Provides complete parts breakdown with numbered illustrations covering the barrel, wheel train, escapement, mainplate, bridges, and screws. Full movement specifications: 6¾''' diameter (15.30 mm), 5.00 mm thickness, 21,600 oscillations per hour.
Eterna Caliber 1420 Movement Specification Sheet
Technical data sheet for the Eterna caliber 1420 automatic movement. Provides essential specifications for watchmakers and technicians, including overall dimensions (7 1/4''' – 16.20 mm), center height (4.90 mm), and balance frequency of 21,600 bph. Features exploded views identifying the main plate (part 100), balance cock (part 1143), and fixing screw (part 5750), plus front and back views of the complete assembled movement.
Eterna Caliber 1426 Movement Technical Data
Technical data sheet for the Eterna caliber 1426 automatic watch movement, a complete reference document for service technicians and watchmakers. Specifies movement diameter of 13.5 lines (30.60 mm), height 5.95 mm, and operating frequency of 18,000 vibrations per hour. Features exploded diagrams and detailed component illustrations covering the full movement assembly, balance wheel mechanism, and mainplate configuration. Essential for movement service, repair, and maintenance work on watches fitted with this caliber.
Eterna Caliber 1428 Technical Parts List
Technical parts list and exploded diagrams for the Eterna caliber 1428 automatic watch movement. Comprehensive component identification with numbered references for dial-side and case-back views, enabling precise location of every mechanical part within the movement. Essential reference documentation for watchmakers and technicians.
Eterna Caliber 1429 Watch Movement - Technical Data
Technical data sheet and parts list for the Eterna caliber 1429 automatic watch movement. Specifications include movement diameter of 29.00 mm (13'''), balance wheel diameter of 4.50 mm, and operating frequency of 18,000 vibrations per hour. Documentation covers the main caliber 1429 and related variant 1439 UB, with detailed component diagrams and part numbering. Reference material for watchmakers and technicians.
Eterna Caliber 1431 Parts List and Exploded View
Technical parts list and exploded view diagram for the Eterna caliber 1431 automatic watch movement. This single-page reference document provides numbered component illustrations essential for repair, maintenance, and assembly work. Covers the complete movement architecture including main plate and bridges, balance wheel assembly, escapement mechanism, gear train arrangement, and all screws and fasteners. Movement specifications: 11.5 ligne case, 3.10 mm thickness, 18000 vibrations per hour. Indispensable for watchmakers performing service, repair, or restoration of this caliber.
Eterna Caliber 1432 Movement Technical Data
Technical data sheet for the Eterna caliber 1432 mechanical movement, presenting essential specifications for service technicians and horologists. Details the movement diameter of 27.60 mm (12.5 lines), thickness of 3.10 mm, and operating frequency of 18,000 vibrations per hour. Includes annotated diagrams of the main plate assembly and escapement wheel configuration, along with component cross-references (100, 166, 5166) to aid in identification and parts sourcing. A practical reference for maintenance, repair, and technical troubleshooting of this Swiss movement.
Eterna Caliber 1434 - Parts List and Exploded Views
Technical parts documentation for the Eterna Caliber 1434 watch movement. Includes a numbered parts list paired with detailed exploded views showing the complete breakdown of all internal components—main plate, gear wheels, balance spring, screws, jewel settings, and mechanical assemblies. Comprehensive reference for identifying and sourcing individual components and technical specifications. Movement specifications: 8¾ ligne (19.40 mm), 3.55 mm thickness, 18,000 vibrations per hour.
Eterna Caliber 1436 Exploded Parts Diagram
Exploded parts diagram and technical parts list for the Eterna caliber 1436 automatic watch movement. This reference document displays all numbered component parts in detailed cross-section view, including the mainplate, complete gear train, balance wheel assembly, escapement mechanism, and the full complement of screws and springs with corresponding reference designations. Essential for watchmakers performing service, repair, or reassembly of this movement, and invaluable for understanding the mechanical layout and part relationships of this Swiss automatic caliber.
Eterna Caliber 1438 and 1439 Parts List
Technical parts list and component breakdown for Eterna automatic watch movements Caliber 1438 (12 lignes, 27.60 mm, 18,000 vph) and Caliber 1439 (13 lignes, 29.00 mm, 18,000 vph). Features detailed technical diagrams of both movements with numbered parts references, allowing watchmakers and technicians to identify and locate every individual component. Essential reference for repair, maintenance, and restoration work on these precision automatic calibers.
Eterna Caliber 1441 and 1444 Movement Spare Parts
Technical spare parts manual for Eterna caliber 1441 and 1444 automatic watch movements. This workshop reference provides exploded component diagrams, detailed parts identification with numbered references, and full specifications for both calibers (17.20 mm and 18.30 mm diameters, 5.60 mm thickness, 18000 vibrations per hour). Essential for watchmakers, repair technicians, and movement service professionals handling these Swiss movements. Includes comprehensive parts lists and movement schematics for accurate identification and ordering of replacement components.
Eterna Caliber 1446 Parts List and Technical Diagram
Complete parts list and technical diagram for the Eterna caliber 1446 automatic watch movement. This document presents all internal components with numbered illustrations and precise parts references. The detailed diagrams and component breakdown make it straightforward to identify and source replacement parts for this Swiss automatic caliber.
Eterna Caliber 1447 Movement - Parts List
Complete technical parts list and exploded diagrams for the Eterna caliber 1447 mechanical movement. This reference covers the full component breakdown of this 21,600 vibrations per hour escapement — a 5½ ligne movement (13.00/15.15 mm diameter, 3.55 mm height). Includes numbered part references across multiple assembly views: main plate, train wheels, escapement assembly, balance wheel mechanism, and all individual components. Essential for watch technicians, repair specialists, and movement rebuilders needing precise part identification and assembly guidance. Ideal for servicing, maintenance, and accurate parts ordering.
Eterna Caliber 1456 Parts List and Exploded View
Comprehensive parts list and exploded mechanical views for the Eterna caliber 1456 automatic movement. Features numbered component diagrams and detailed individual part illustrations covering screws, springs, jewels, and all assembly details essential for accurate identification during service and repair work. Serves as an indispensable reference document for watchmakers and technicians performing maintenance, troubleshooting, or restoration of this caliber. The exploded views and parts breakdown enable precise disassembly and reassembly procedures.
Eterna Caliber 1459 Spare Parts Catalog
Illustrated spare parts catalog for the Eterna caliber 1459 automatic movement. This detailed parts list provides technical specifications (7 3/4", 17.20 mm, 4.50 mm, 21,600 vph) alongside comprehensive exploded views of every mechanical component, from the balance wheel and escapement to the gear train, mainspring, screws, and jewels. The numbered parts reference system guides assembly and service work, making it essential for watchmakers and technicians performing maintenance or restoration on this movement.
Eterna Caliber 1463 Mechanical Watch Movement - Parts List
Eterna caliber 1463 mechanical watch movement parts list. Complete technical diagram displaying the 6¾''' (15.30 mm) movement with 4.65 mm height and 21,600 beat rate. Numbered component breakdown including escapement, balance, gears, springs, and fasteners with dimensional specifications. Reference document for watchmakers and technicians.
Eterna Caliber 1466 and 1457 Technical Data and Parts List
Technical data sheet and comprehensive parts list for Eterna caliber 1466 and 1457 automatic watch movements. Includes precise movement specifications (13"/29.00 mm diameter, 18,000 oscillations per hour balance wheel), detailed component identification with factory part numbers, and technical diagrams showing the architecture of both calibers. Essential reference for watchmakers, technicians, and collectors working on or servicing these movements.
Eterna Caliber 1469 Spare Parts Diagram
Technical parts list and reference diagram for the Eterna Caliber 1469 automatic watch movement. This technical data document details movement dimensions (7 3/4" / 17.20 mm), balance wheel frequency (21,600 vibrations per hour), and provides a numbered breakdown of key movement components including the main plate, dial, screws, hairsprings, jewels, and other mechanical elements. An essential reference for watchmakers requiring parts identification and specifications for this caliber.
Eterna Caliber 1470 and 1471 Technical Parts Diagram
Technical parts diagram for Eterna automatic watch movements caliber 1470 (12.5 ligne, 27.60 mm, 21,600 vph) and caliber 1471 (13 ligne, 29.00 mm, 21,600 vph). This reference document includes numbered component identification for all movement parts with front and back views of the movement plates, enabling watchmakers and technicians to accurately identify every assembly element of these Swiss automatic movements.
Eterna Caliber 1475 and 1476 Movements - Parts List
Technical parts list for Eterna caliber 1475 and 1476 watch movements. The caliber 1475 measures 12.5 ligne (27.60 mm) while the caliber 1476 is 13 ligne (29.00 mm), both beating at 21,600 vibrations per hour. This document provides numbered parts references and component identification for these Swiss movements. Useful for watchmakers, technicians, and collectors needing precise part identification and component reference during maintenance or restoration work.
Eterna Caliber 1480 and 1481 Movement Parts Breakdown
Technical parts breakdown and exploded diagram for Eterna caliber 1480 and 1481 automatic watch movements. This technical data sheet provides detailed component reference with part numbers for both calibers — the 1480 at 12½ line, 27.60mm diameter, and the 1481 at 13 line, 29.00mm diameter. Includes complete movement breakdown, dial ring assembly, and individual component views covering balance wheel, gear train, escapement, and all structural elements essential for parts identification and technical reference. Indispensable reference documentation for watch technicians working with these Eterna movements.
Eterna Caliber 1485 and 1486 Movement Specifications
Technical specification and repair reference guide for Eterna caliber 1485 and 1486 automatic movements. This workshop manual provides detailed photographs of movement plates, balance wheel assemblies, and complete component identification for both calibers. Cal. 1485 measures 12.5 lignes (27.60 mm) diameter with a beat rate of 21,600 vibrations per hour; Cal. 1486 is 13 lignes (29.00 mm) with the same 21,600 vph frequency. The documentation covers mainplate configuration, calendar mechanism components, and spare parts references, making it essential for watchmakers performing service, maintenance, or repair work on these movements. Includes detailed technical photography for accurate parts identification and assembly procedures.
Eterna Caliber 1487 Movement - Technical Parts List
Complete technical parts diagram and exploded view for the Eterna automatic movement caliber 1487 (11½ ligne, 25.60 mm, 5.20 mm height, 21,600 vph). This technical documentation provides numbered component references for the full movement assembly, including dial-side and case-back views. Details the escapement, balance wheel, and shock-absorber integration, with all part numbers clearly identified. Features a comprehensive breakdown of the Pare-chocs ETERNA Kif shock-absorption system components, making this an essential reference for watchmakers and technicians.
Eterna Caliber 1488 and 1489 Technical Data
Technical data and specifications for Eterna automatic watch movements caliber 1488 and 1489. Presents dial-side and movement-side views with precise dimensional specifications: caliber 1488 measures 12½ lines (27.60 mm), caliber 1489 measures 13 lines (29.00 mm). Balance wheel diameter 5.20 mm, operating frequency 21,600 oscillations per hour. Includes detailed movement diagrams identifying components and their arrangement, along with part numbers and assembly relationships.
Eterna Caliber 1497 Movement - Parts List
Comprehensive parts list and exploded view diagram for the Eterna caliber 1497 automatic movement. This document identifies key components including the main plate (100), balance cock (105), screws (401), and associated spring elements (445), along with smaller mechanical parts (443) essential for assembly and repair work. The movement measures 6¾''' diameter (15.30 mm) with 4.70 mm thickness and operates at 21,600 vibrations per hour. Detailed front and back rotor illustrations support accurate identification and ordering of replacement parts. Essential reference for watchmakers performing maintenance, restoration, or parts replacement on this Swiss automatic caliber.
Eterna Caliber 1500, 1501 - Technical Parts List and Movement Diagrams
Technical parts list and movement diagrams for Eterna caliber 1500 and 1501 automatic watch movements. This document provides exploded views of complete movements and numbered component reference diagrams for both calibers. Cal. 1500: 29.00 mm diameter, 3.60 mm thickness, 21,600 vph. Cal. 1501: 29.00 mm diameter, 4.15 mm thickness, 21,600 vph. Includes cross-references to calendar spare parts from calibers 1466 and 1457.
Eterna Caliber 1511 Mechanical Movement Parts List
Technical parts list and exploded views for the Eterna Caliber 1511 automatic mechanical movement (11.5 ligne, 25.60 mm, 36,000 vph). This workshop manual provides detailed component breakdowns for the main plate, bridges, escapement mechanism, gear train, balance assembly, and all individual parts with numbered identifications—essential reference material for service technicians, watch repairers, and movement rebuilds.
Eterna Caliber 1531 and 1532 Mechanical Movement Parts List
Technical parts list and component identification manual for Eterna automatic watch movements caliber 1531 (11.5 lignes, 25.60 mm) and 1532 (13 lignes, 29.00 mm). Both movements operate at 21,600 vibrations per hour. Features numbered mechanical parts diagrams and detailed exploded views essential for watchmakers, repair technicians, and movement service work. Serves as a reference guide for identifying individual components within these mechanical movements, supporting disassembly, reassembly, and parts sourcing for restoration and maintenance of Eterna watches fitted with these calibers.
Eterna Caliber 1541 and 1542 Movement Specifications
Technical specifications sheet for Eterna automatic watch movements caliber 1541 and 1542. Documents diameter measurements (25.60 mm and 29.00 mm respectively), thickness (4.60 mm), and balance frequency (21,600 vibrations per hour). Includes detailed photographs of both sides of each movement, plus calendar spare parts references for calibers 1521 and 1522, and additional spare parts listings for caliber 1531. Essential reference for watchmakers, service technicians, and movement specialists requiring accurate dimensional and mechanical data for Eterna automatic movements of this generation.
Eterna Caliber 1543 and 1544 Movement Specifications
Technical Data sheet for Eterna caliber 1543 and 1544 automatic watch movements. Complete specifications including dimensions of 11½" (25.60 mm) and 13" (29.00 mm) respectively, height of 5.30 mm, and operating frequency of 21,600 vibrations per hour. Cross-references for spare parts catalogs and calendar complication options. Essential reference documentation for watchmakers and technical professionals working with these mid-century Eterna automatic movements.
Eterna Calibre 12670 Technical Data and Parts List
Technical parts catalog and component reference for the Eterna calibre 12670 automatic movement. Features detailed numbered component diagrams and exploded views showing the complete movement architecture, including the balance assembly, escapement mechanism, gear train, and mainspring barrel. Includes a comprehensive indexed parts list with screw specifications and dimensional data. Movement specifications: 7³/₄''' (17.20 mm) diameter, 4.80 mm thickness, 28,800 vibrations per hour.
Eterna Calibre 1491 Parts List and Technical Diagram
Complete parts list and technical diagram for the Eterna caliber 1491 automatic movement. This technical documentation provides detailed exploded views of the entire mechanism with numbered component references and corresponding part numbers for each element. Key movement parameters: diameter 29.50 mm, height 6.95 mm, operating frequency 18,000 vibrations per hour. The second page displays fastener specifications including screw head types and dimensions. Comprehensive reference for watchmakers and technicians.
Eterna Calibres 1472/1482 Spare Parts Guide
Spare parts guide for Eterna calibres 1472 and 1482 watch movements. This technical reference documents component availability for these limited-production calibres, of which only 1000 examples per calibre were manufactured. The guide provides ordering instructions and cross-references for replacement parts using ETA calibre designations (2496 and 2497), essential for technicians and collectors maintaining these movements. Includes part numbers and specifications needed for sourcing genuine components and performing service work on these watchmaking calibres.
Eterna Matic Caliber 12824 & 12825 Parts List
Technical parts list and exploded diagrams for Eterna Matic automatic watch movements caliber 12824 (11.5 lignes, 25.60 mm) and caliber 12825 (13 lignes, 29.00 mm). This repair manual covers numbered component illustrations, dial assembly specifications, and individual part identifications for service technicians and watchmakers performing maintenance or restoration work on these movements.
Eterna Sonic Cal.1550-ESA 9162 Parts List
Eterna Sonic Cal.1550-ESA 9162 parts list with exploded views and component reference diagrams. Provides part numbers for the dial, wheel train, bridges, electronic module, transistors, and fastening hardware including screws and springs. Essential reference for watch movement assembly, disassembly, and replacement of wear components. Detailed breakdown supports both routine maintenance and technical repair work on this electronic movement.