Miyota Cal.0S21 Chronograph Movement Specifications
Complete specifications and instruction manual for the Miyota caliber 0S21 quartz chronograph movement, an essential reference for watchmakers and technicians servicing this mechanism. Details include fundamental specifications—13-1/2 ligne format, 30.80mm diameter, 5.10mm height—alongside technical performance data: tuning fork crystal at 32,768Hz delivering ±20s/month accuracy and approximately 3 years of battery life on a single SR927W silver oxide cell. The manual provides step-by-step guidance for time and date setting, full chronograph operation on a 1/1 second basis with capacity up to 59 minutes 59 seconds, chronograph reset procedures, and precision hand fitting techniques. Also includes practical tachymeter explanation for speed measurement applications. An indispensable workshop resource for routine maintenance, repair, and assembly work on this popular quartz chronograph caliber.
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Document Details
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- 4
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- Category
- Watchmaking