apaqi fashion personality men's watch ik student sports watch, Slivery;brown

1、 basic knowledge of mechanical watch: 1. automatic chain mechanical watch: automatic winding by arm swing, so you must wear it for more than 8 hours every day to ensure accurate timing. you can also supplement energy by manual chain, the method is to rotate the handle clockwise for about 15 circles (not pulling out state) 2. manual on the chain mechanical watch: need to manually on the chain (do not pull out the state, clockwise rotation) watch can normally walk, usually turn 15 turns (if to