LONGINES - Service Manuals
23 manuals available for download
ETA 251.252/251.262/251.272 Movement Technical Documentation
Technical communication document for ETA 251.252, 251.262, and 251.272 watch movements (13¼''' caliber, Ø 30 mm). Contains detailed interchangeability lists, materials specifications, exploded views of main plate, upper plate, and bridges. Includes assembly instructions with torque specifications for display module, calendar mechanism, handsetting and electronic module, and motor circuits. Lubrication recommendations specified for each assembly stage.
Longines 5601, 5602 - Component Concordance Table
Technical documentation showing component concordance table for Longines calibers 5601 and 5602. Page 1 contains a detailed numbered list of watch components with cross-reference between the two calibers, including plates, bridges, wheels, springs, screws and mechanical parts. Page 2 displays exploded views and visual illustrations of the components referenced in the concordance table, with component numbers and part identification drawings.
Longines 950.2, 952.2, 953.2, 954.2 Service Manual Part 3
Part 3 of service manual covering movement reconditioning for Longines automatic watches. Details disassembly procedures (removal of components, magnetic screen, electronic module, bridge screws), cleaning instructions without removing critical parts (electronic module 4000, rotor 4211, hairspring 4929, quantity indicator 2557), lubrication guidelines, and assembly steps for various mechanical elements including escape wheel, intermediate wheels, and timing components.
Longines 950.2, 952.2, 953.2, 954.2 Service Manual Part 4
Part 4 of the Longines service manual covering reassembly and adjustment procedures. Includes detailed instructions for installing the calendar mechanism, balance wheel assembly, and electronic circuit components. Contains electrical testing procedures for the movement with measurement specifications using specific instruments (Esamètre 2, Multimètre V-62). Covers battery storage requirements and specifications.
Longines Caliber 340, 342, 345 Parts Lists and Technical Specifications
Technical documentation for Longines automatic watch movements caliber 340, 342, and 345. Includes detailed parts lists with numbered component identification, exploded views of movement assemblies, dimensional specifications (27.00mm height, 4.45-4.60mm thickness), and comprehensive screw references. Movement specifications listed: 12-ligne, 17 rubies, center second, automatic, 19800 oscillations per hour.
Longines Caliber 890 Parts Concordance and Assembly Diagrams
Parts concordance table for Longines calibers 890.1, 890.2, 891.1, 891.2, 892.1, 892.2, 893.1, and 893.2, with cross-reference numbers and component designations. Includes exploded view diagrams showing the mechanical assembly of watch movements with numbered parts (platine, ressorts, roues, vis, leviers, barillet, spiral, balancier, etc.). Technical reference documentation for service and restoration work.
Longines Caliber L995.2, L996.2, L997.2, L998.2 Technical Manual
Technical service manual for Longines caliber L995.2, L996.2, L997.2 and L998.2 movements. Round 11.5mm manual winding movements with two barrels in series, 17 jewels, lever escapement and 28,800 vibrations per hour. Includes general characteristics, technical description of motor system, transmission, escapement, regulating system, complete components list with concordance table, specific equipment requirements, and detailed instructions for ordinary operations including rate correction, winding stem replacement, glass replacement, movement exchange and water-resistance testing.
Longines Calibre 19AS Watch Movement Technical Sheet
Technical specification sheet for the Longines Calibre 19AS automatic watch movement. Includes mechanical diagrams showing the movement from front and back views, basic caliber specifications (8.68 N), dimensions (23.30mm height, 6.00mm width), and multiple variant configurations with jewel counts (17 or 19 jewels), escapement types (anchor, pallet-fork), beat rates (18000 vibrations per hour), and numbered component parts diagram. Multilingual documentation in French, English, Spanish, German, and Italian.
Longines Calibre 280 Movement Parts Diagram
Technical parts diagram for Longines Calibre 280 mechanical watch movement. Includes two views of the complete movement, dimensional specifications (26.50mm height, 3.90mm width), and detailed numbered breakdown of all internal components (gears, springs, jewels, screws, and other parts). Contains comprehensive parts list with reference numbers and assembly details.
Longines Calibre 380 Movement Technical Specifications
Technical documentation for the Longines Calibre 380 automatic movement. Contains four variant specifications: 12½''' Ancre (27 rubies, center second), 12½''' Pallet-fork (27 jewels, sweep second), 12½''' Ancora (27 rubies, central second), and 12½''' Anker (27 rubies, central second). All variants operate at 19800 vibrations per hour. Includes movement assembly views showing the mechanism from top and bottom, dimensional drawings (28.00mm height, 5.20mm width), and a detailed parts breakdown with numbered components and mechanical elements such as wheels, springs, escapement parts, and jewel settings.
Longines Calibre 430 Movement - Parts List and Technical Drawings
Technical documentation for Longines Calibre 430 automatic movement. Includes movement specifications (11.5 lignes, 17 jewels, 36000 vibrations per hour), exploded views of movement components, detailed technical drawings with dimensional measurements (25.60mm diameter, 4.30mm thickness), and comprehensive illustrated parts list with reference numbers for all components including plates, gears, springs, jewels, screws, and other mechanical parts.
Longines Calibre 431 Movement Parts Catalog
Technical parts list and exploded views for Longines Calibre 431 automatic watch movement. Contains detailed component diagrams showing main plates, wheels, springs, screws, hands, dial, and various mechanical parts. Multiple variations listed including center-second, sweep-second, and calendar models. Specifications show 11.5 lignes (approximately 25.60mm) diameter, 17 jewels, 36,000 vibrations per hour.
Longines Calibres L 890, L 891, L 892, L 893 Technical Manual
Technical documentation for Longines automatic watch movements L 890.1, L 890.2, L 891.1, L 891.2, L 892.1, L 892.2, L 893.1, L 893.2. 12-line round movements with 28,800 alternations per hour. Includes general characteristics, technical specifications, motor unit description, transmission system, escapement details, regulating organ, winding and date-setting mechanisms, and automatic winding system. Features caliber comparison plates showing movement variants with and without date complications.
Longines L.650.2/L.651.2/L.651.3 Watch Movement Technical Data
Technical information sheet for Longines chronograph movements L.650.2 (ETA 2894-2) and L.651.2/L.651.3 (ETA 2894-1). Includes movement specifications (28mm diameter, 6.10mm height, 26'000 A/h frequency, 42-hour power reserve, 37 jewels, 53° balance lift angle), dial views, movement plates, complete interchangeability table listing all components with ISO references and material specifications across calibers, and detailed parts illustrations.
Longines L420.1 ETA 282.001 Technical Information
Technical information sheet for Longines L420.1 quartz movement (ETA 282.001). Contains dimensional specifications, height measurements for movement and battery positions, exploded views of internal mechanism from two angles, parts list with ISO reference numbers and material designations, hand fitting specifications with calibration data for hours and minutes adjusters, dial seat heights, electrical test procedures including battery voltage, motor speed, consumption measurements, and coil resistance specifications.
Longines L950.2, L952.2, L953.2, L954.2 Movement Service Manual
Technical service manual for Longines quartz watch movements L950.2, L952.2, L953.2, and L954.2. Includes technical characteristics, performance specifications, operating instructions, frequency adjustment, electronic circuit details, motor specifications, power consumption data, operating limits, and regulating information. Features parts list with concordance table showing component designations across all four calibers, plus mechanical assembly diagrams and exploded parts illustrations.
Longines L950/L954 Service Manual - Equipment and Operations
Part 2 of service documentation for Longines L950, L952, L953, L954 calibers. Covers specific equipment for the L950 family including dial carrier with adjustable screw, isolated screwdriver, ESAMETRE 2 control device, and chronometer comparators with inductive/acoustic/electrical pickup. Detailed procedures for battery replacement, regulator adjustment (1.55 volt stabilized), instantaneous rate control (±0.20 to ±0.30 s/d), trimmer adjustment, main spring exchange, hour hand setting, movement exchange and installation, hand assembly, casing procedures, and rate control testing.
Longines L960 Movement Parts List and Diagram
Parts list and concordance table for the Longines L960 watch movement. Includes numbered component designations (100-54060) with corresponding mechanical part names and exploded views showing individual components such as mainplate, bridges, wheels, jewels, screws, and electronic module assembly.
Longines L970, L974, L976, L977, L978 Movement Service Manual
Service manual pages 11-24 covering standard movement exchange, disassembly procedures, cleaning, lubrication, and reassembly instructions for Longines calibers L970, L974, L976, L977, and L978. Includes component concordance table, detailed technical operations, troubleshooting guidance, and movement reconditioning procedures with photographic references of internal mechanisms.
Longines L970.2/L974.2/L976.2/L977.2/L978.2/L270.2/L273.2 Service Manual
Maintenance manual for Longines quartz watch calibers. Covers presentation, technical characteristics and performances, operating instructions and recommendations, parts list with concordance table, apparatus and tools, routine operations, standard movement exchange, reconditioning and electrical control of movement, battery testing. Includes movement diagrams and detailed component specifications for seven caliber variants with silver-oxide or lithium batteries.
Longines L990 Movement Service Manual Pages 7-12
Technical service documentation for Longines L990 family caliber watches. Covers standard movement exchange procedures, complete disassembly with numbered component references and exploded views, cleaning, lubrication points, and reassembly instructions. Includes detailed step-by-step operations for movement removal, parts identification, and final regulation adjustments.
Longines L990.1 L990.2 Assembly and Lubrication Guide
Technical assembly and maintenance documentation for Longines L990.1 and L990.2 watch movements. Contains detailed step-by-step instructions for reassembly of pivots, correctors, escapement components, gear wheels, balancer-spiral assemblies, and shock absorbers. Includes lubrication plan showing specific lubrication points and types (Lo 125, Synta-Visco-Lube, Microtime Watch) for various movement components. Features multiple technical photographs with component reference numbers and detailed assembly sequences.
Longines L990.1, L990.2, L992.1, L992.2, L993.1, L993.2, L994.1, L994.2 Service Manual
Service manual for Longines automatic calibers L990.1, L990.2, L992.1, L992.2, L993.1, L993.2, L994.1, L994.2. Contains technical specifications, mechanical descriptions, three-position winding stem mechanism details, automatic winding system, regulation adjustments, complete parts list with concordance table, and exploded views of major assemblies including mainplate, bridges, wheels, and specialized components.