Audemars Piguet Royal Oak 41 mm Frosted Gold Perpetual Calendar "Japan" Black Dial - 26574BC.GG.1224BC.01 Spitfire accentuated by diamond hour markers

accentuated by diamond hour markers and embraced by a platinum case and a white gold Rolex President bracelet

it was the first to feature a unidirectional bezel with a dual scale for depth and dive time to calculate a safe ascent without decompression stops

diamond-set index and Roman numeral 6 and 9 hour markers

semi-circular three-piece links Bracelet Material 18 ct Yellow gold Clasp Concealed folding Crownclasp Dial Color Champagne Stick Dial

and a precise chronograph via center seconds hand

Audemars Piguet Royal Oak 41 mm Frosted Gold Perpetual Calendar "Japan" Black Dial - 26574BC.GG.1224BC.01 Spitfire accentuated by diamond hour markersBrand Audemars Piguet Series Royal Oak Limited Edition Model Number 26574BC. GG. 1224BC. 01 Model Year Call for Enquiry Condition Call for Enquiry Box Papers Box & Papers Case Material Call for Enquiry Case Size 41 mm Case Detail Hammered 18 carat white gold case, glareproofed sapphire crystal and caseback, screw locked crown. Crown Screw Locked Case Back Transparent Movement Automatic Hands Luminous Bezel Set with Diamonds Dial Type Analog Dial