This product is self-winding automatic mechanical wristwatch designed with metal band. Since it's automatic mechanical, it would get energy through your movement rather than battery. Generally speaking , the error of +-45 seconds per day is possible, so you don't worry.
## Product Description
Brand name: SINOBI
New brand of mechanical wristwatch
Classical wrist watch
Metal band and function of tachymeter
Self-winding automatic mechanical wrist watch
Stainless steel back
Round dial and big graduation of scale
Dial diameter: 4cm
Band material: Metal band
Swing the watch 20-30 times, for the first use.
Put the watch on the horizontal state and swing the watch for couple minutes before you
Automatic mechanical watch requires the user wear everyday, do with the proper amount of
movement enable the bar to keep running.
It is normal to become slow, if the user have less activity on it.
1 Wrist watch