AUDEMARS PIGUET, ROYAL OAK PERPETUAL CALENDER REF. 25820ST 'BLUE COSMOS', A RARE AND ATTRACTIVE STEEL AUTOMATIC WRISTWATCH
Lot 118

AUDEMARS PIGUET, ROYAL OAK PERPETUAL CALENDER REF. 25820ST 'BLUE COSMOS', A RARE AND ATTRACTIVE STEEL AUTOMATIC WRISTWATCH

CASE NUMBER: E-73420, NO. 333

Closed26 October 2022

Price Realised

USD 100,800

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AUDEMARS PIGUET, ROYAL OAK PERPETUAL CALENDER REF. 25820ST 'BLUE COSMOS', A RARE AND ATTRACTIVE STEEL AUTOMATIC WRISTWATCH
CASE NUMBER: E-73420, NO. 333
CIRCA: 2003
CASE MATERIAL: Stainless steel
DIAMETER: 39 mm.
BRACELET: Integrated stainless steel
DIAL: Indigo blue
MOVEMENT: Cal. 2120/2800, automatic
FUNCTIONS: Time, perpetual calender, moon-phase, leap year indication
BUCKLE: Stainless steel folding clasp
WITH: Extract from the Archives, presentation box and outer packaging

Specialist note

Audemars Piguet introduced the perpetual calendar complication to the Royal Oak collection in 1983. The first QP reference (Ref. 25654 was) introduced in 1983 and was produced till 1998 and is believed to have been limited to just 422 pieces (in yellow gold).

The watch was powered by Cal. 2120/2800, an automatic movement based on Jaeger-LeCoultre’s legendary ultra-thin JLC Cal. 920. The Caliber 2120 was developed in 1967 with the support of Audemars Piguet. The movement was adopted by Patek Philippe and Vacheron Constantin too.

The reference 25820 was launched in 1998 and featured the 2120/2802 with leap-year indicator movement first seen on the limited edition 25810. The present reference has a rarely intense indigo blue that is referred to Blue Cosmos in the Extract from the Archive.