Seiko 1E20A Quartz Movement Parts Catalogue
Seiko 1E20A quartz movement parts catalogue covering complete technical specifications and component breakdown for this precision timepiece mechanism. Documents the 8.5mm casing diameter, 2.6mm maximum height, 5-jewel construction, 32.768 Hz crystal oscillator frequency, and dual-pole step motor with rotary step switch regulation system. The catalogue provides exploded views and a comprehensive parts list with individual reference numbers for every component: train wheel bridge, center wheel and pinion assembly, hour wheel, third and fourth wheels, minute wheel, clutch wheel, winding stem, setting lever, yoke, dial washer, circuit block, coil block, step rotor, insulators, battery contact configuration, rotor stator arrangement, rotary step switch mechanism, jewel placements, fasteners (screws and pins), tubes, and compatible battery types (Maxell SR512SW and Seiko SR512SW). Essential reference material for service technicians, movement specialists, and watchmakers requiring detailed component identification and assembly information for repair, maintenance, or restoration work on this movement variant.
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Document Details
- Format
- Pages
- 4
- Size
- 115.5 KB
- Category
- Watchmaking