Stainless Steel Case Stainless Steel Bracelet Caliber H550 Scratch Resistant Mineral Glass Crystal Eco-Drive ( recharged by any light source, no need to change battery ) 6 Month Power Reserve Chronograph Function Insufficient Charge Warning Function Overcharge Prevention Function Regular Timekeeping-Analog 3 hands (Hour, minute, seconds) 60 Minute Stopwatch Sub Dial AM-PM 24 Hour Sub Dial Smaller Second Hand Sub Dial Black Dial Luminous Hands and Hour markers Tachymeter Bezel Date Window 2 Push Button & Crown Squeeze Release Clasp Screw Case Back 100m Water Resistance Case Diameter 46mm Case Thickness 11mm