The Reign Philippe includes the following features - 316l surgical-quality stainless steel case, jeweled automatic movement, jewel bearings - 20 jewels, 42-hour power reserve, beats per hour (bph) - 21600/hour, sapphire-coated mineral crystal, skeleton dial, observation caseback to view movement, crown protector case design, genuine leather crocodile-embossed strap, logo-engraved stainless steel clasp, luminous hands, luminous markers, 41mm diameter, 5 ATM water resistance.