Audemars Piguet. A stainless steel automatic triple calendar bracelet watch
Model: Royal Oak Offshore
Reference: 25807ST
Date: Circa 1990
Movement: 36-jewel Cal.2127 automatic, adjusted to heat, cold, isochronism and 5 positions, 21K gold rotor segment, No.440729
Dial: Dark grey grid, applied luminous filled polished bullet hour markers, white outer minute divisions and raised calendar markers, day and month apertures at 12, subsidiary seconds at 6, white arrow tipped calendar hand
Case: Brushed and polished tonneau form, back secured by 8 screws, bezel with 8 screws, quick set buttons at 2 and 4, shouldered screw down crown, No.D75157, 106
Strap/Bracelet: Polished steel link
Buckle/Clasp: Signed folding clasp
Signed: Case, dial & movement
Size: 39mm