ALPS Men's Luxury Skeleton Hand Wind Automatic Brown Leather BandWatch Brand name :ALPS Hand-Winding Mechanical watch Classic Luxury Design, Good Gift Choice How to wind a mechanical watch :A mechanical watch is a watch that uses a mechanical mechanism to measure the passage of time, as opposed to modern quartz watches which function electronically. It is driven by a spring (called a mainspring) which must be wound periodically. ( Pls read the description the steps) Any question, pls feel free to contact us when receive it ^^