JUNGHANS Master Chronoscope Movement: Precise Automatic Movement Caliber J880.1, ETA 7750 Working: Rhodined factory, barrel and wheel bridge with pearl, bridge and rotor with Geneva cut, Junghans logo on rotor, 16 blued screws, 25 jewels, power reserve 46 hours Functions: display from hour, minute, small seconds at the 9, date and weekday display, chronoscope with central stop seconds, 30-minute counter at 12 o'clock, 12-hour counter at 6 o'clock Dial: fine silver matte dial with neck indices, complete minute, silver hand, hour and minute hands with environmentally friendly "Super Luminova" luminous material, Junghans logo Housing: Polished stainless steel housing, 5x screwed-in face floor, domed hard plexiglass with SICRALAN coating Water resistant: tested up to 30 metres / 3 ATM Bracelet: Solid stainless steel bracelet Clasp: Polished stainless steel folding clasp Dimensions: diameter 40.7 mm, septic tank 13.9 mm Weight 132 grams