Seiko Caliber 11A Parts List - Technical Data and Component Specifications
Comprehensive parts list and technical documentation for the Seiko caliber 11A manual-wind movement, covering both 17-jewel and 21-jewel variants. This service manual details movement specifications including casing dimensions of 15.15 × 13.00 mm, maximum height 3.50 mm, and operating frequency of 21,600 vibrations per hour. Documentation covers the complete mechanical assembly: barrel bridge, train-wheel bridge, pallet cock, balance cock, escape wheel, pallet fork, and all internal components with corresponding part numbers. Includes practical technical remarks on critical tolerances such as cannon pinion lengths, hour wheel axle dimensions, and winding stem configurations. The movement features Seiko's Diashock shock-resistant device and Diafix oil lubrication system for reliable performance. Derived from the parent caliber 1104A platform. Essential reference for watchmakers performing disassembly, repair, maintenance, or parts identification work on caliber 11A timepieces.
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Document Details
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- Pages
- 2
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- 180.5 KB
- Category
- Watchmaking