Seiko Cal. 5M42A, 5M43A Parts Catalogue and Technical Guide
Parts catalogue and technical guide for Seiko automatic watch movements Cal. 5M42A and 5M43A. Includes detailed exploded views of movement components, parts list with reference numbers, specifications (27.6 mm outside diameter, 4.3 mm height, 6 jewels, step motor with load compensated driving pulse), disassembly and reassembly procedures, lubrication instructions, and technical remarks on specific components including circuit block structure, holding ring for dial, oscillating weight adjustment, capacitor unit installation, train wheel bridge positioning, and electrical resistance values.
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Document Details
- Format
- Pages
- 12
- Size
- 315.2 KB
- Category
- Horlogerie