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.
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