Seiko Quartz Cal. 8620A Parts Catalogue
Parts catalogue for Seiko Quartz Cal. 8620A movement. Includes exploded views and part numbers for all components: casing (16.4 × 15.3 mm), wheels, pinions, circuit block, coil, rotor, battery, jewels, screws, and tubes. Technical specifications: 32,768 Hz quartz crystal oscillator, step motor (2 poles), trimmer condenser regulation. Two type combinations (a and b) shown for center wheel, cannon pinion, and hour wheel assemblies. Battery options listed: SEIKO TR621SW, SEIKO SB-DG, Maxell SR621SW, Toshiba SR621SW.
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Document Details
- Format
- Pages
- 4
- Size
- 93.1 KB
- Category
- Horlogerie