The Heritor Automatic Ryder includes the following features - 316l surgical-quality stainless steel case, jeweled automatic movement, jewel bearings - 22 jewels, 40-hour power reserve, beats per hour (bph) - 21600/hour, sapphire-coated mineral crystal, skeleton dial, observation caseback to view movement, logo-engraved stainless steel crown, genuine leather crocodile-embossed strap, logo-engraved stainless steel clasp, super-luminova hands, 44mm diameter, 5 ATM water resistance.