Cal. 7F18A Parts Catalogue and Technical Guide
Parts catalogue and technical guide for Hattori Seiko Cal. 7F18A watch movement. Contains detailed specifications, movement diagrams, disassembly and reassembly procedures, component parts list with illustrations, and lubrication instructions. Covers solar position display, moon phase display, date and day hands, and instant setting devices. Movement specifications include step motor driving system, 2-hand time indication, monthly rate accuracy of less than 15 seconds, and battery life of approximately 3 years.
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Document Details
- Format
- Pages
- 4
- Size
- 122.9 KB
- Category
- Horlogerie