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This is a genuine MIYOTA sliding pinion for the 0S10/0S20 movement, made in Japan, designed for the 0S10/0S20 quartz chronograph calibers. It serves as a key component connecting the clutch wheel and winding pinion in the keyless works, transmitting crown pull operations to the setting mechanism for time setting and date quickset function switching. This product is brand new and original, not a generic replacement part.
Brand：MIYOTA (by CITIZEN)
Compatible Movements：0S10 / 0S20 quartz chronograph calibers, including 0S1A/0S2A variants
Part Name：Sliding Pinion
Origin：Made in Japan
Quality：Genuine original, brand new
Function：Connects clutch wheel and winding pinion, enables crown mode switching
1. Is this sliding pinion an original CITIZEN/MIYOTA genuine part?
Yes. It is an original MIYOTA factory part, made in Japan.
2. Which movements is this sliding pinion compatible with?
It fits MIYOTA 0S10 and 0S20 series chronograph calibers, including 0S1A and 0S2A variants. Both measure 13½ ligne (approx. 30.80mm), with different movement heights (0S10: 4.13mm, 0S20: 5.10mm). The 0S10 features chronograph hour/min/sec and date, while the 0S20 features chronograph min/sec and a 24-hour indicator.
3. What happens if the sliding pinion is damaged?
The sliding pinion is a key component connecting the clutch wheel and winding pinion in the keyless works. Damage can cause crown operation failure, inability to set time, or abnormal date quickset function. The 0S10/0S20 use position 1 for date quickset and position 2 for time setting. As a wear-prone component, timely replacement is recommended.
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