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This is a genuine MIYOTA 10H second wheel by CITIZEN, made in Japan, designed for the FS00 quartz chronograph movement. It drives the 60‑minute chronograph totalizer at 10 o’clock, transmitting movement power to ensure precise chronograph accumulation. This product is brand new and original, not a generic replacement part.
Brand：MIYOTA (by CITIZEN)
Compatible Movement：FS00 quartz chronograph movement
Part Name：10H Second Wheel (10 o’clock 60‑minute chronograph totalizer drive)
Origin：Made in Japan
Quality：Genuine original, brand new
Function：Drives the 60‑minute chronograph totalizer at 10 o’clock
Movement Size：10½ ligne (Ø23.7mm)
Movement Height：4.13mm
Battery：377 (SR626SW)
Accuracy：±20 seconds/month
1. Is this 10H second wheel an original CITIZEN/MIYOTA genuine part?
Yes. It is an original MIYOTA factory part, made in Japan.
2. Which movements is this 10H second wheel compatible with?
It fits the FS00 quartz chronograph movement. The FS00 features a 3‑eye chronograph with 60‑minute totalizer at 10 o’clock, small seconds at 6 o’clock, 24‑hour display at 2 o’clock, and date at 4 or 6 o’clock. Verify your movement caliber is FS00.
3. What happens if the 10H second wheel is damaged?
It can cause the 10 o’clock chronograph totalizer hand to stop or accumulate incorrectly, affecting the chronograph minute counting function. Timely replacement is recommended.
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