Stuhrling Original Men's 628.02 Legacy Automatic Skeleton Stainless Steel Watch Stainless steel round shaped case with decorative "s" screws on bezel and black skeleton dial 46mm stainless steel round case with shatter resistant Krysterna crystal dial window Automatic self wind movement with analog display and water resistant to 50m (165 ft) Stainless steel link bracelet with push button deployment clasp Automatic Movement - This watch is powered by the motion of the wearer's wrist. For first time wear the crown must be turned clockwise about 20-30 full turns. If the watch is not worn for 8 or more hours per day, it will work slower than usual or even stop briefly.