Audemars Piguet Royal Offshore Triple Calendar
Reference 25807ST. 38 mm steel case, black dial, sapphire crystal, triple calendar (Month, day of the week, and day of the month), steel arm with folding clasp. Ap2127 automatic movement. Year 1987-1994. -D series. Audemars Piguet in very good condition with little use. Never polished. With outer and inner box. With one year warranty.