OLEVS Automatic Watch(No Battery Required) Men's Wrist Watches Self-Wind Mechanical Watches Fashion Classic Tourbillon Skeleton Watch Black Blue Green Face,Adjustable Bracelet (Gift Tool)

Self winding mechanical movement powered by the wearer's natural wrist movements, no battery, The movement has 21 rubies, the frequency is 21,600 times per hour, and the energy storage is more than 45 hours.

Classic Skeleton Design:The 41mm (1.61inch) big face design, the combination of sparkling diamonds and Roman numerals, is classic and stylish.

The ingenious tourbillon skeleton design enhances the grade of the watch.

The years and month display windows provide more detailed time.

Multifunctional Men Wrsit Watch:Multi-calendar windows are matched with the time to accurately grasp the time.

3ATM waterproof meets daily waterproof needs.

The luminous function can read the watch in the dark environment.