Circa: 1990
Case material: 18k gold
Diameter: 36 mm.
Strap material: Brown associated leather strap
Dial: Silvered
Movement: Automatic
Functions: Perpetual calendar and moon phases
Buckle: 18k gold Audemars Piguet buckle
With: Audemars Piguet Certificat d'Origine et de Garantie, sales tag, setting pin, additional black Audermars Piguet CROCODILE strap, product literature, key, presentation box and outer packaging
Certificate: Yes
Box: Yes
Note: The presentation box that accompanies this lot may not be the original “fitted box”. Please refer to paragraph A in the Conditions of Sale for further information. If you have any queries, please contact Watch Department at watcheshk@christies.com

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This lot is offered by Christie's Hong Kong Limited

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Lot Essay

At the time of its launch in 1978, reference 25657, the Quantième Perpétuel Automatique model, was one of the few perpetual calendar wristwatches available at the period. It incorporated furthermore one of the most important horological innovation of the time, the world’s thinnest, automatic perpetual calendar movement with an ultra-slim profile of only 3.95 mm., cal. 2120.