Timex Marlin Watch - Blue - 40mm

A tachymeter is a scale on the bezel of a watch that allows you to measure speed based on time. It's often used in conjunction with the chronograph function to calculate average speed over a known distance.

The watch has a water resistance of 5 bars, which means it can withstand splashes and brief immersion in water. However, it is not recommended for swimming, diving, or prolonged exposure to water.

The typical battery life for a quartz watch like this is approximately 2-3 years, depending on usage of the chronograph functions.

The strap is made of silver stainless steel, measuring 20 mm in width and 21 cm in length. It features a fold-over clasp with push buttons for secure closure. Minor adjustments can usually be made at the clasp or by a jeweler removing links.

The watch comes with a warranty of 2 years from the date of purchase.

Yes, the watch is compatible with standard 20mm watch straps, allowing you to customize its appearance with leather, NATO, or other materials.

The 24-hour display is typically linked to the main time setting. When you set the main time using the crown, the 24-hour sub-dial will move accordingly. Ensure the crown is in the middle position for setting.

Ensure the chronograph is fully stopped. If the issue persists, you may need to manually reset the hands by carefully manipulating the crown and pushers as per the manual or consulting a watchmaker.

Check if the battery is low. If the watch is new, ensure the crown is fully pushed in. If the problem continues, the quartz movement may require servicing.

Ensure you are setting the date between 9 AM and 12 PM to avoid conflict with the automatic date change mechanism. Consult the manual for precise date setting instructions.

Gently try to operate the push buttons. Ensure no debris is obstructing the clasp mechanism. If it remains stiff, seek assistance from a jeweler.