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I have a Rolex Daytona with valjoux 7750B1 movement with functional chronos, how do I use the stopwatch function?

April 26, 2017chronos Daytona function Functional movement Rolex stopwatch VALJOUX

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I have a Rolex Daytona with valjoux 7750B1 movement with functional chronos, how do I use the stopwatch function?

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The Daytona has chronograph buttons, which has a protective-screw lock for protection. This is a unique feature for Rolex Daytona. When you need to push the button, you need to un-wind the protective-screw to the level of the inside button, then you can push the button and press the button. Be sure to push it all the way and fully release it when pushing. Pushing halfway may cause it to stop half way and cause mechanical problems.