Chronogrease P125 from Klüber is a premium, thick, highly viscous grease formulated specifically for automatic watch barrels and mainsprings. It is widely recommended by the Swiss watch industry, including by major movement makers, for lubricating the barrel wall and mainspring side of calibres such as 7750, A07.11, and many other automatic or chronograph movements.

Supplied in a 5g tube for convenient workshop use, this grease excels where traditional oils or lighter greases would fail, especially under the pressure and friction inside a fully wound barrel. Ideal for watchmakers servicing automatics and chronographs needing reliable mainspring braking lubrication.

Key Features:

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  Designed for automatic watch barrels and mainspring lubrication.

  
  


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  Thick, high-viscosity black grease, suited for high-pressure, sliding contact surfaces. 

  
  


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  Helps maintain smooth power delivery by controlling mainspring slip under load. 

  
  


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  Recommended by industry standard (e.g. ETA) for calibres like 7750, A07.11, etc. 

  
  


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  Comes in a compact, easy-to-apply 5g tube, convenient for bench servicing.