As a chronograph, the Daytona can measure an elapsed amount of time. You’ll be using the following parts:

The 12-hour counter and the 30-minute counter to time their respective increments, the chronograph seconds hand, the upper-screw down pusher to start and stop timing, and finally the lower screw down pusher that will reset the timers.

Rotate both pushers counterclockwise to unscrew. To begin timing, press the upper pusher, and the chronograph seconds hand will begin moving. Press the upper pusher again to stop timing.

Press the lower pusher to reset all of the timers.

Make sure to screw in the pushers clockwise to close when you are done to ensure waterproofness.

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