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This is a genuine MIYOTA 1L22 third wheel from Citizen of Japan, a key transmission component in the gear train of the MIYOTA 1L22 quartz movement. Manufactured in Japan and brand new, it is used to repair or replace a worn or damaged third wheel in a MIYOTA 1L22 caliber, ensuring smooth power transmission from the gear train to the hand-setting mechanism.
Genuine MIYOTA Part – Produced by MIYOTA (Citizen Japan), not a copy or generic component.
Made in Japan – Precision manufacturing ensures accurate gear meshing and reliable operation.
Compatible Movement – Designed specifically for the MIYOTA 1L22 quartz movement (two hands, no seconds, date/no-date variations).
Brand New – Unused factory-original stock, no wear or tooth deformation.
Core Transmission Role – The third wheel sits in the middle of the gear train (between the intermediate wheel and the seconds/minutes wheel), transmitting power from the stepping motor to the hand system. Its tooth precision directly affects minute hand smoothness and timekeeping stability. This movement is jewel‑less, an economical precision quartz caliber.
Discontinuation Replacement – The 1L22 movement has been discontinued; MIYOTA GL22 is the official substitute.
| Parameter | Details |
|---|---|
| Part Name | Third Wheel |
| Compatible Movement | MIYOTA 1L22 quartz (two hands, no seconds / date or no‑date variations) |
| Movement Dimensions | 15.3 mm × 18.2 mm |
| Movement Thickness | 2.15 mm |
| Origin | Japan |
| Brand | MIYOTA / CITIZEN |
| Condition | Brand new, genuine |
| Jewels | None (jewel‑less, economical grade) |
1. Is this a genuine MIYOTA third wheel?
Yes. The product clearly states “Genuine MIYOTA” and “Made in Japan” – it is an authentic factory part, not a third‑party copy.
2. Which movements is this third wheel compatible with?
It is designed specifically for the MIYOTA 1L22 quartz movement (two hands, no seconds). Different dial configurations (date/no‑date) share the same gear train. The official successor movement, GL22, also shares a compatible gear system. Always verify with the parts diagram of your movement.
3. What are the symptoms of a damaged or worn third wheel?
Common symptoms include: jerky or hesitant minute hand motion, slipping sensation when setting the time, or the minute hand not moving or moving intermittently.
4. What should I pay attention to during installation?
The third wheel is a precision gear. Ensure both pivots align properly with the plate holes; avoid forcing it, which could break teeth. Apply a tiny amount of watch oil to the pivots and check meshing with adjacent wheels. The MIYOTA 1L22 uses snap‑fit plastic plates which require careful handling to avoid breaking clips. Professional installation is recommended.
5. Is this movement discontinued? Why are parts still available?
Yes, the 1L22 has been discontinued and replaced by the GL22. However, new old stock (NOS) genuine parts remain available for servicing existing watches. This third wheel is from factory stock, intended for maintaining currently worn 1L22 calibers.
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