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Aftermarket jumping hour click engineered for Rolex Calibre 3186 GMT movements (Ref. 3186-657), a critical component of the GMT mechanism. This part provides the distinct “click” feel and precise indexing of the independently adjustable hour hand when the crown is turned. An ideal cost-effective solution for restoring proper GMT function when the original click spring becomes worn or damaged.
| Parameter | Value |
|---|---|
| Part Name | Jumping Hour Click |
| Part Number | 3186-657 |
| Brand | Generic (Aftermarket) |
| Movement | Rolex Calibre 3186 (GMT) |
| Function | Indexes independent hour hand in GMT mechanism |
| Type | Aftermarket Replacement Part |
Q1: Is this a genuine Rolex part?
A: No — this is an aftermarket jumping hour click for Rolex 3186 (Ref. 3186-657). It is not manufactured by Rolex SA.
Q2: What movement does it fit?
A: This jumping hour click fits the Rolex Calibre 3186 GMT movement. Please confirm your movement model before purchasing.
Q3: What does the jumping hour click do?
A: It provides the distinct click feel and precise indexing of the independently adjustable hour hand in the GMT mechanism when the crown is turned.
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