Seiko Quartz Cal. 6439A Parts Catalogue
Parts catalogue for the Seiko Quartz Cal. 6439A movement, providing complete technical reference for service technicians and watchmakers. Features comprehensive illustrated parts diagrams with full part numbers and specifications covering the 24.0 mm diameter casing and 2.7 mm maximum height assembly. Details the quartz movement's core specifications including 7 jewels, 32.768 Hz quartz crystal oscillator, 2-pole step motor, and trimmer condenser regulation system. The parts list encompasses over 100 individual components—wheels, bridges, screws, springs, jewels, and circuit block elements—each cross-referenced for accurate identification and ordering. Includes documentation of date dial variations across models 801 through 527, along with compatible battery specifications (Maxell SR1120SW, U.C.C. 381, SEIKO TR1120SW, SEIKO SR-DS). An essential reference manual for repair, maintenance, and parts replacement of this movement series.
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Document Details
- Format
- Pages
- 4
- Size
- 148.6 KB
- Category
- Watchmaking