Nice and intouched Girard Perregaux Ref.40-68 chronograph. Mint Stainless steel case, measures 39mm without crown. The sub-dials include a small seconds at 9 o'clock, a 30 minute counter at 3 o'clock and a 12 hour register at 6 o'clock. Tachymetre/Pulsiometer scales. Diver timer Bezel is a non-rotating. The pristine crystal is domed plexi, 18mm lugs wide, fitted by the original S/S bracelet. Powered by an Excelsior Park calibre 40 movement. The watch is overall in mint condition and work properly.