Seiko Cal. 2104A Parts List and Specifications
Seiko Cal. 2104A Parts List and Specifications — comprehensive parts identification document for the Seiko 2104A movement. Includes exploded diagram with part numbers, dimensional specifications (17.80 x 15.30 mm case, 4.40 mm maximum height), and operating frequency of 19,800 vibrations per hour. This manual covers the manual-wind movement with sweep second hand, detailing the barrel bridge, train wheels, escapement assembly, regulator, and associated screws and jewels. Cross-references the base caliber 21A 17J model for additional specifications. Essential reference for watchmakers and technicians performing maintenance, repair, or restoration work on Seiko 2104A timepieces.
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Document Details
- Format
- Pages
- 1
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- 108.1 KB
- Category
- Watchmaking