Miyota OS62 1/20 Sec Chronograph Movement Technical Data
Technical data and service specifications for the Miyota Cal. OS62 13-1/2 ligne quartz chronograph movement, a compact analogue module designed for precision timekeeping with retrograde demonstration capability. This repair manual details the movement's core performance parameters: 32,768 Hz frequency, approximately 2-year battery life, Ø30.80mm diameter, and 4.13mm total height across its 0-jewel construction. The chronograph function operates on a 1/20 second basis, accumulating time up to 11 hours 59 minutes 59 seconds with an integrated 60-second retrograde demo display spanning 120 degrees of arc. Documentation covers push-button operation (A for START/STOP, B for RESET and mode switching), crown positioning, hand balance weight specifications, and critical service clearances for caseback and hand fitment. Essential reference for watchmakers and movement technicians performing maintenance, adjustment, or component replacement on this quartz chronograph calibre.
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Document Details
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- Pages
- 5
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- Category
- Watchmaking