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This is a genuine Sellita SW300-1482 ratchet wheel driving wheel, a precision component designed specifically for the Sellita SW300 automatic movement.
As part of the automatic winding system, this wheel works in conjunction with the ratchet wheel and reversing gears to efficiently transfer energy from the oscillating weight to the mainspring barrel.
This essential replacement part is ideal for watchmakers and service centers performing restoration or maintenance on SW300 calibers, ensuring proper winding function and reliable timekeeping.
Genuine Sellita Part – Swiss factory-original for SW300, not a copy.
Automatic Winding Core – Works with ratchet wheel and reversers to transfer rotor power to the mainspring barrel.
Precision Machined – Accurate gear teeth for smooth power transfer and low wear.
Essential for Service – Common failure point when automatic winding efficiency drops or fails.
Compatible Movement – Designed for Sellita SW300 automatic calibers.
| Parameter | Details |
|---|---|
| Part Name | Ratchet Wheel Driving Wheel |
| Part Number | Sellita SW300-1482 |
| Compatible Movements | Sellita SW300 automatic (SW300-1, etc.) |
| Function | Power transmission in automatic winding system |
| Origin | Switzerland |
| Condition | Brand new, genuine |
Sellita SW300 automatic movement (common in high-end independent brands such as Oris, Maurice Lacroix, Baume & Mercier)
Repair of reduced automatic winding efficiency or rotor spinning without winding action
Replacement of worn, broken, or damaged ratchet wheel driving wheels during movement service
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
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