Familiarize yourself with the functions: Luminox Chronograph watches typically feature three buttons on the side. The top button starts and stops the chronograph, the bottom button resets it to zero, and the middle button, known as the crown, adjusts the time.

Activate the chronograph: Press the top button to initiate the chronograph's stopwatch function. Watch as the central hand begins its sweep across the sub-dials, measuring time in remarkable detail.

Measure elapsed time: Keep an eye on the chronograph's central hand as it moves. The main dial usually represents seconds, while the smaller sub-dials may indicate minutes and hours. Take note of these readings to accurately calculate the elapsed time.

Pause the chronograph: Press the top button once more to pause the chronograph, freezing the central hand at its current position. This allows you to capture and record the precise elapsed time with accuracy.

Reset the chronograph: To reset the chronograph to zero, press the bottom button. This action aligns all hands back to their starting positions, preparing your Luminox Chronograph for its next timing session.