Features 1、Main function: 12/24H system, barometer, compass, altimeter, 50m waterproof, second time function, stopwatch, full auto-calendar, alarm, thermometer, backlight, standby. 2、Constructed from robust and durable carbon fibre, this watch is not only strong and sturdy but also hypoallergenic and antimagnetic. 3、With a water resistance of up to 50m, this watch is suitable for swimming. However, it is not recommended for use while showering, in hot springs, or diving. 4、Can display data clearly in the dark. 5、This watch makes an excellent gift for friends, relatives, lovers, husbands, fathers, or sons due to its practicality and stylish design. Features: Main function: 12/24H system, barometer, compass, altimeter, 50m waterproof, second time function, stopwatch, full auto-calendar, alarm, thermometer, backlight, standby. Constructed from robust and durable carbon fibre, this watch is not only strong and sturdy but also hypoallergenic and antimagnetic. With a water resistance of up to 50m, this watch is suitable for swimming. However, it is not recommended for use while showering, in hot springs, or diving. Can display data clearly in the dark. This watch makes an excellent gift for friends, relatives, lovers, husbands, fathers, or sons due to its practicality and stylish design. Specifications: Material: Carbon fiber, stainless steel, TPU Waterproof: 50m Battery model and capacity: CR2032 (220mAh) Watch size: 4.8*1.6cm/ 1.9*0.6in Strap width: 2.3cm/ 0.9in Strap length: 26cm/ 10.2in Weight: 74g/ 2.6oz Package List: 1 * watch Package List 1 * watch