Inspired by Bulova’s military heritage and vintage watches of the time, the Hack Watch infuses historical elements for a contemporary lifestyle. The updated style features a three-hand 21-jewel automatic movement with a 42 hour power reserve. The stainless steel case with an ivory dial and luminescent hands and markers also features a center track on the dial displaying 24H time. Black leather NATO strap. Domed mineral crystal. Water resistance to 30 meters. Product Details MODEL 96A246 12/09/2019 MOVEMENT 82S0 TECHNOLOGY Automatic Powered by the release of a wound spring, mechanical movements never require a battery. Automatic mechanical movements have an oscillating weight that winds the spring with the motion of the wearer’s arm. CASE WIDTH (MM) 38 LUG WIDTH (MM) 18 DIAL Arabic Numbers;Luminous Hands STRAP TYPE Strap Leather CASE MATERIAL Silver-Tone Stainless Steel CLASP 3pc Wire Strap Buckle CRYSTAL Double Domed Mineral Crystal WATER-RESISTANCE 0030M ADDITIONAL FUNCTIONS 3 Hand Automatic Hack Feature