$185.00
You Saved
This is a genuine Jaeger-LeCoultre hour wheel for Caliber 977, a Swiss‑made original movement part. The hour wheel is a critical component of the motion work, transferring power from the minute wheel to the hour hand to ensure synchronized movement of the hour and minute hands. With key dimensional parameters of 1.95 mm, 2.2 mm, and 2.8 mm (likely corresponding to bore diameter, outer diameter, or height), it is the ideal replacement part for restoring proper hand‑setting function when servicing Caliber 977 movements.
Genuine JLC Part – Swiss factory‑original for Caliber 977, not a copy.
Motion Work Core – Ensures synchronized hour and minute hand movement and precise time setting.
Precision Machined – Accurate gear teeth and bore dimensions for smooth engagement.
Essential for Service – Replace when hands are not synchronized, the hour hand is loose or sticky.
Compatible Movement – Designed for Jaeger-LeCoultre Caliber 977 manual or automatic.
| Parameter | Details |
|---|---|
| Part Name | Hour Wheel |
| Compatible Movement | Jaeger-LeCoultre Caliber 977 |
| Key Dimensions | 1.95 mm / 2.2 mm / 2.8 mm (likely bore/outer diameter/height; refer to original part) |
| Type | Genuine original |
| Origin | Switzerland |
| Condition | Brand new |
Jaeger-LeCoultre Caliber 977 movement (commonly found in Reverso watches).
Repair of asynchronous hour/minute hands, loose hour hand, or abnormal setting resistance.
Replacement of worn or deformed hour wheels during movement service.
1. Is this a genuine JLC hour wheel?
Yes. It is a Swiss factory‑original part for Caliber 977, not a copy.
2. What do the dimensions 1.95/2.2/2.8mm refer to?
These likely indicate the inner diameter, outer diameter, and height of the hour wheel. Verify with your original part or consult the seller.
3. What are the symptoms of a damaged hour wheel?
Symptoms: rough or asynchronous hour hand movement when setting time; inaccurate hour hand position after setting; crown turns but hour hand does not move.
4. What should I pay attention to during installation?
The hour wheel sits above the minute wheel. Ensure correct meshing with the minute wheel and intermediate wheel. Professional installation is recommended.
5. Does this hour wheel fit other JLC calibers like Caliber 975?
Different calibers have different hour wheel dimensions – do not mix. Verify with the original part.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
