Seiko 6109A Caliber 17 Jewels Technical Data and Parts List
Complete technical data and parts list for the Seiko 6109A automatic wristwatch movement, a 17-jewel caliber running at 21,600 vibrations per hour. This service manual provides essential specifications: 27.00 mm casing diameter and 5.30 mm maximum height, with automatic winding and sweep seconds hand. The movement features Seiko's Diashock shock-resistant device. The detailed exploded diagram maps every component to its part number, supported by a comprehensive parts identification table with full cross-references—essential for servicing, rebuilding, or sourcing components. A practical reference for watchmakers and technical professionals working on 1970s Seiko automatic movements.
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Document Details
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- Pages
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- Watchmaking