Audemars Piguet Royal Oak Perpetual Calendar 25820SP White Dial FULL SET


Audemars Piguet 25820SP.OO.0944SP.03 Royal Oak Perpetual Calendar, 25820SP OO 0944SP 03, 25820SP.OO.0944SP.03, stainless steel and platinum Royal Oak case on a stainless steel and platinum bracelet, automatic AP caliber 2120/2802, perpetual calendar with day, date, month, and moonphase, leap year indicator, white waffle dial, baton hands, applied indexes, sapphire crystal, display back, diameter: 39mm, thickness: 10mm, E Series. Like New with original winding box, instruction booklet, service papers from AP in 2008, and original Audemars Piguet guarantee booklet dated November of 2007.

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More about Royal Oak Perpetual Calendar 25820SP White Dial FULL SET

This is a stainless steel and platinum Audemars Piguet Royal Oak Perpetual Calendar 25820SP.OO.0944SP.03. It has an integral stainless steel and platinum bracelet with a double deployant clasp, and a scratch resistant sapphire crystal. It has an exhibition sapphire display case back secured with 8 gold screws and engraved around the perimeter with "AUDEMARS PIGUET – SWISS MADE - QUANTIUM PERPETUAL AUTOMATIQUE," a serial and an edition number. There is a hexagonal screw-down winding crown, and the 39mm diameter solid three-body case, integral lugs, bracelet, and flat octagonal bezel secured by 8 hexagonal white gold screws, are polished and brushed. There are two correctors on each side of the case band. The dial is white with a waffle “Grande Tapisserie” pattern, with Royal Oak baton hands and applied hour markers, with an outer minute track. It has a subsidiary dial for the days of the week at 9 o'clock, a sub dial at the 3 o'clock position for the days of the month, one for the months and the leap year at 12, and there is a moon phase indicator at 6 o'clock. It's water resistant to 50 meters/150 feet, and it has a 40-hour power reserve. The 10mm thick case, dial, and movement are all signed. This Audemars Piguet Royal Oak Perpetual Calendar 25820SP.OO.0944SP.03 has a mechanical automatic self-winding Audemars Piguet caliber 2120/2802 movement that's rhodium-plated. It's constructed with 38 jewels, 343 components, and a shock absorber mechanism. The balance has variable inertia blocks, a mobile stud balance spring holder, and a 21K gold oscillating weight segment. It has bidirectional winding and a self-compensating flat balance spring. There is a suspended barrel, and the shake of the oscillating weight is precise with an annular ring that runs on four jewels. The bridges are hand polished, with polished bevels, satin-brushed edges, and perlage on the recesses. There is a straight-line lever escapement, and a Gyromax balance that's adjusted to heat, cold, isochronism and 5 positions. It includes a hand-engraved skeletonized rotor with a 21K gold segment. The Moon phase is constructed with physical vapor deposited with metal onto sapphire. The mechanism oscillates at a frequency of 19,800 vph (2.5Hz). This Audemars Piguet Royal Oak Perpetual Calendar 25820SP.OO.0944SP.03 will self-adjust until the year 2100.

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