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This is a genuine MIYOTA hour wheel for the 1M02 movement, made in Japan, designed for the 1M02 day-date quartz caliber. It serves as a core transmission component of the timekeeping system, transmitting power from the minute wheel to the hour hand for 12-hour time display. This product is brand new and original, not a generic replacement part.
Brand：MIYOTA (by CITIZEN)
Compatible Movement：1M02 quartz caliber (3-hand day-date)
Part Name：Hour Wheel
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. It is an original MIYOTA factory part, made in Japan.
2. Which movements is this hour wheel compatible with?
It fits the MIYOTA 1M02 day-date quartz caliber (10½ ligne size). This is a 3-hand day-date movement with hacking seconds. This part differs from the 1M12 (date-only) and 1L12 (smaller size) variants—verify your movement model before installation.
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 1M02 offers accuracy of ±20 seconds/month—hour wheel precision directly impacts timekeeping. Timely replacement is recommended.
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