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;