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This is a genuine MIYOTA second wheel for the 6S10 movement, made in Japan, designed for the 6S10/6S20/6S30 quartz chronograph calibers. It serves as the final transmission component of the timekeeping system, transmitting power to the small seconds hand at 6 o’clock as a key component for precise regular timekeeping. This product is brand new and original, not a generic replacement part.
Brand：MIYOTA (by CITIZEN)
Compatible Movements：6S10 / 6S20 / 6S30 quartz chronograph calibers
Part Name：Second Wheel (6H Small Seconds Drive)
Origin：Made in Japan
Quality：Genuine original, brand new
Function：Drives the small seconds hand at 6 o’clock (regular timekeeping)
1. Is this second wheel an original CITIZEN/MIYOTA genuine part?
Yes. It is an original MIYOTA factory part, with the parts list specifying Original Parts, Made in Japan.
2. Which movements is this second wheel compatible with?
It fits MIYOTA 6S10, 6S20, and 6S30 series quartz chronograph calibers, which share the same dimensions and layout (15 ligne, Φ34.60mm, 4.90mm height). Verify your movement main plate marking before installation. The 6S10/20/30 primarily differ in dial design and subdial positioning.
3. What happens if the second wheel is damaged?
This wheel drives the small seconds hand at 6 o’clock. Damage can cause the small seconds hand to stop or run incorrectly, affecting regular timekeeping. This part is not interchangeable with the 12H 1/20 second chronograph wheel or the 9H chronograph minute wheel.
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