The Heritor Automatic Aries includes the following features - 316l surgical-quality stainless steel case, jeweled automatic movement, jewel bearings - 22 jewels, 42-hour power reserve, beats per hour (bph) - 21600/hour, sapphire-coated mineral crystal, skeleton dial, observation caseback to view movement, 316l surgical-quality stainless steel bracelet, logo-engraved fold-over push-button deployment clasp, luminous hands, moon phase, dual time zone, 47mm diameter, 5 ATM water resistance ,