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This is a genuine Cartier yoke spring for the date mechanism of Caliber 1847, a Swiss‑made original component for Cartier‘s in‑house 1847 MC automatic movement. This spring controls the position and return of the date yoke, ensuring stable and accurate date advancement at midnight. This brand new original part is essential for watchmakers restoring proper calendar function during service or repair.
Genuine Cartier Part – Swiss factory‑original for the date mechanism of Caliber 1847 MC, not a copy.
Calendar Core – Controls the positioning and return of the date yoke for accurate midnight advancement.
Precision Spring Design – Provides correct tension for proper engagement and disengagement of the date yoke with the date driving wheel.
Essential for Service – Replace when the date fails to advance, jumps halfway, or advances weakly.
Compatible Movement – Designed for Cartier Caliber 1847 MC automatic.
| Parameter | Details |
|---|---|
| Part Name | Yoke Spring For Date |
| Compatible Movement | Cartier Caliber 1847 MC automatic (found in Santos, Ballon Bleu, Tank collections with in‑house calibers) |
| Type | Genuine original |
| Function | Controls date yoke position for accurate calendar advancement |
| Material | Spring steel |
| Origin | Switzerland |
| Condition | Brand new, genuine |
Cartier Caliber 1847 MC automatic movement (found in Santos, Ballon Bleu, Tank collections with in‑house calibers).
Repair of date display faults: no advance, half‑jump, incorrect timing, or weak jump.
Replacement of aged, deformed, or broken date yoke springs during movement service.
1. Is this a genuine Cartier date yoke spring?
Yes. It is a Swiss factory‑original part for Caliber 1847 MC, not a copy.
2. What are the symptoms of a damaged date yoke spring?
Symptoms: date does not change in the window; date jumps halfway (stuck between two numbers); date changes at the wrong time (not at midnight); weak or hesitant date jump.
3. What should I pay attention to during installation?
Clean the date mechanism before installation. Ensure one end of the spring engages the yoke groove and the other is secured to the mainplate. Follow the Cartier technical guide. Professional installation is strongly recommended.
4. Does the date yoke need to be replaced at the same time?
Not always. If the yoke is also worn or deformed, replace both. Inspect the yoke first.
5. Does this spring fit other Cartier calibers like 1904 MC?
No. The 1847 has a different date mechanism design – not interchangeable.
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