Seiko H021B H022A H023A Parts Catalogue & Technical Guide
Complete parts catalogue and technical guide for Seiko calibers H021B, H022A, and H023A hybrid quartz movements. Provides detailed movement specifications including outside diameter (Ø31.0 mm), casing diameter (Ø30.0 mm), height (5.5 mm), and 5 jewels. Features comprehensive specifications for analog and digital sections, stepping motor drive systems, display systems with time/calendar, world time, stopwatch, and alarm functions. Includes numbered component diagrams showing case back, gasket, case ring, movement, dial ring, dial, and button assemblies. Details lubrication types (Moebius A, Moebius F, Silicone Oil), battery specifications (SB-BU SR1130W, 1.55V, 2-year life), and measuring gate information. Essential reference for parts identification and technical specifications.
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Document Details
- Format
- Pages
- 9
- Size
- 1.2 MB
- Category
- Watchmaking