Quartz mechanical watch - change battery and maintenance
About quartz watches
Should replace the battery regularly, replace the battery time should be replaced at the same time, sealing ring and waterproof test (general battery power consumption time limit of 1-2 years). Some tables have the function of replacing batteries, and you should change the battery within 3 weeks after the prompt.
About mechanical watches
The movement should be maintained 1 times in 2-3 years, such as cleaning and oiling. If not wearing long should also regularly watch, to turn the machine chip.