> HOW TO USE THE CHRONOGRAPH > How to use the chronograph

How to use the chronograph

The chronograph can measure up to 30 minutes (for 8R46) or 12 hours (for 8R48).

“Chronograph” refers to a watch function that measures the elapsed time while indicating the current time.

Please do not pull out the crown to adjust the time/date while the stopwatch is in operation.

Before using the stopwatch, be sure to check that the center stopwatch hand is at “0” position. If not, press button B to reset it to “0” position.

Before using the stopwatch, be sure to check that the watch is wound up sufficiently. If the power reserve indicator indicates less than 10 hours of power reserve, the stopwatch cannot be used.

8R48_Names of the parts Chrono

  1. Center stopwatch seconds hand

  2. Stopwatch minute hand (Measures up to 30 minutes)

  3. Stopwatch hour hand (Measures up to 12 hours)

    4. (8R48 only)

  4. Button A

    5. Start/Stop

  5. Button B

    6. Reset of the stopwatch

  6. Tachymeter How to use the tachymeter

    7. The position of the tachymeter display may differ depending on the design of the model.