The Empress Stella includes the following features - 316l surgical-quality stainless steel case, jeweled automatic movement, jewel bearings - 22 jewels, 36-hour power reserve, beats per hour (bph) - 21600/hour, sapphire-coated mineral crystal, mother-of-pearl dial, semi-skeleton dial, 8 crystal markers on dial, observation caseback to view movement, crystal set bezel, genuine leather crocodile-embossed strap, logo-engraved stainless steel clasp, luminous hands, 39mm diameter, 5 ATM water resistance.