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This is a genuine MIYOTA hour wheel for the 0S00 movement, made in Japan, designed for the 0S00 quartz chronograph caliber. It serves as a core transmission component of the timekeeping system, driving the hour hand and working with the minute wheel and chronograph train to form the complete time and chronograph display system. This product is brand new and original, not a generic replacement part.
Brand：MIYOTA (by CITIZEN)
Compatible Movement：0S00 quartz chronograph caliber
Part Name：Hour Wheel
Part Number：MY075.A71
Origin：Made in Japan
Quality：Genuine original, brand new
Function：Drives the hour hand
1. Is this hour wheel an original CITIZEN/MIYOTA genuine part?
Yes, made in Japan.
2. Which movements is this hour wheel compatible with?
It fits the MIYOTA 0S00 quartz chronograph caliber (13½ ligne size). The 0S00 measures 5.10mm in height with a 6.95mm total height, featuring: 60-minute totalizer at 12H, 12-hour totalizer at 9H, small seconds at 6H, and day/date at 3H. The winding stem part number is 065-453 (tap 10).
3. What happens if the hour wheel is damaged?
The hour wheel is a core component for driving the hour hand. Damage can cause the hour hand to stop, run incorrectly, or jam, affecting time readability. The 0S00 offers accuracy of ±20 seconds/month—hour wheel precision directly impacts timekeeping. Timely replacement is recommended.
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