Our essential tactical timepiece now features a self-winding mechanical engine, revealed by an exhibition caseback. Take it off the beaten path with a 100 meter water rating, ultra-resistant K1 glass and day date window. Then take it on the town with an Italian leather strap and elegant all-black colorway.

Automatic watches do not contain batteries. They are charged by the movement of your wrist. If the watch is not worn it will stop running in about 38 hours. To get it started, turn the crown clockwise about 20-30 times until the second hand starts moving. You will most likely need to reset the time and date.