Seiko Caliber 1520A Technical Data and Parts List
Seiko caliber 1520A technical data sheet and parts list for this 17-jewel mechanical watch movement. Covers complete specifications including casing dimensions of 19.80 x 9.60 mm, maximum height of 3.50 mm, and operating frequency of 19,800 vibrations per hour. Detailed parts inventory with individual part numbers for barrel assembly, gear train wheels and pinions, jeweled pallet fork, balance wheel assembly, escapement components, and fastening screws. Non-automatic movement equipped with Seiko's Diashock shock resistant device and Diafix oil lubrication system for reliable operation. Essential reference for repair technicians, service specialists, and watchmakers requiring precise component identification and sourcing for caliber 1520A servicing and restoration work.
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Document Details
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- Pages
- 1
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- 82.8 KB
- Category
- Watchmaking