AUDEMARS PIGUET REF. 25820ST, SELF-WINDING, BISSEXTILE PERPETUAL CALENDAR, MOON PHASES, BLUE-GREY DIAL; "ROYAL OAK", "QUANTIEME PERPETUEL AUTOMATIQUE"; STAINLESS STEEL | Important Modern & Vintage Timepieces | Monaco Auction
AUDEMARS PIGUETREF. 25820ST, SELF-WINDING, BISSEXTILE PERPETUAL CALENDAR, MOON PHASES, BLUE-GREY DIAL; "ROYAL OAK", "QUANTIEME PERPETUEL AUTOMATIQUE"; STAINLESS STEEL, An exceptional, very fine and extremely rare, stainless steel, self-winding, “tonneau”-shaped, gentleman’s wristwatch, water-resistant with sapphire-crystal case-back screwed by eight screws, octagonal ship’s porthole-shaped bezel, screwed by eight hexagonal “nuts” screws, metallic blue-grey colour "tapisserie" dial, with bissextile perpetual calendar and moon phases.
