DEERFUN sports green canvas men's nylon student waterproof watch

Watch knowledge:

1. What is the normal range of error for a watch?

The allowable error for general mechanical watches is around 30 seconds per day, while for quartz watches, it is around 15 seconds per month. The specific error depends on the movement used in the watch.

2. What is the lifespan of a watch battery?

The service life of batteries usually ranges from 1-5 years, depending on the type, size, and energy required for different functions of the watch. For example, a chronometer consumes more energy than a watch that only indicates hours and minutes. When the starts to jump every 4 seconds, it's time to replace the battery.

3. Can I wear a watch to swim or take a shower?

Waterproof for daily use (waterproof up to 30 meters): It can prevent sweat, rainwater, or water droplets from washing your face. Although it can prevent splashing water droplets, it is not suitable for bathing, swimming, diving, and other situations Reinforced waterproof for daily use (waterproof: 50 meters, 100 meters, 200 meters): can be used for work or sports that frequently use water (swimming, surfing, etc.) or snorkeling Diving waterproof (waterproof: over 200 meters): can be used for snorkeling or scuba diving Different diving depths can be further divided into waterproofing for air diving, waterproofing for saturated diving, and professional (600mm1000mm) waterproofing functions.

4. How to ensure that the usage time of a watch can last for many years?

Magnetic field: Do not expose the watch to strong magnetic fields, such as near , refrigerators, or other electromagnetic devices Seawater: After coming into contact with seawater, the watch must be cleaned with clean warm water Crown: Carefully press or rotate the crown inward according to the watch model to ensure that the mechanical device does not get water Cleaning: For metallic watch chains and all waterproof watch cases, clean them with a toothbrush dipped in soapy water, and then dry them with a soft cloth products: avoid direct contact with solvents, detergents, , cosmetics, etc., which may damage the watch chain, case or gasket.