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The Generic Rolex 3035-5022 Balance Stop Spring is a precision replacement part designed for the Rolex Calibers 3035, 3075, and 3085.
This spring, also known as a “hacking lever” or “stop seconds spring,” engages when the crown is pulled to the time-setting position, stopping the balance wheel to enable precise synchronization of the seconds hand.
An essential component for restoring proper hacking functionality in vintage Rolex movements, this generic alternative provides a cost-effective solution for watchmakers during service and repair.
Generic Replacement – Designed for Rolex 3035/3075/3085; non-original but matches dimensions and tension.
Stop-Seconds Core – Brakes the balance wheel when the crown is pulled out for precise time setting.
Precision Manufactured – Made of quality spring steel for stable and durable tension.
Cost-Effective – More affordable than genuine parts for movement service or repair.
Direct Replacement – Same mounting position and method as the original; no modification needed.
| Parameter | Details |
|---|---|
| Part Name | Balance Stop Spring (hacking lever) |
| OEM Reference | Rolex 3035-5022 |
| Compatible Movements | Rolex Caliber 3035, 3075, 3085 |
| Material | Spring steel |
| Function | Stops balance wheel when crown is pulled (hack seconds) |
Rolex Caliber 3035 (e.g., 16000 Datejust, 16800 Submariner Date)
Rolex Caliber 3075 (e.g., GMT-Master 16750)
Rolex Caliber 3085 (e.g., Explorer II 16550)
Replacement of aged, deformed, or broken stop springs during movement service
Repair of non-functioning or intermittent stop-seconds
1. Is this a genuine Rolex spring?
No. It is a generic aftermarket replacement, non-original, but exactly matches the 3035/3075/3085 movements.
2. What are the symptoms of a faulty stop spring?
Symptoms: the second hand continues running when the crown is pulled out (stop-seconds fails), or intermittent stop-seconds function.
3. What should I pay attention to during installation?
Use fine tweezers to place the tiny spring, ensuring one end engages the bridge slot and the other contacts the balance wheel when the crown is pulled. Professional installation is recommended.
4. Does this spring fit other Rolex calibers like 3135?
No. The 3135 has a different hacking mechanism (using other parts like 3135-0915). Not compatible.
5. When should the spring be replaced?
If stop-seconds fails and the keyless works are fine, replace the spring. Check for deformation, breakage, or loss of tension.
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