Estimates do not reflect the final hammer price and do not include buyer's premium, any applicable taxes or artist's resale right. Please see the Conditions of Sale for full details.
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 reference 25820ST with the smooth silver grey dial is a super rare watch and ranks high on the list of seasoned Audemars Piguet collectors. The slim hands on the dial signify its transitional status from the non-leap year indication QPs to the ones with leap year indication.
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Condition report
A Christie's specialist may contact you to discuss this lot or to notify you if the condition changes prior to the sale.
The condition of lots can vary widely and the nature of the lots sold means that they are unlikely to be in a perfect condition. Lots are sold in the condition they are in at the time of sale.
OVERALL CONDITION: The case is in good overall condition
CASE: The case is in good overall condition, the case has been polished by a professional
DIAL: Nice, clean and original
MOVEMENT: Ticking at the time of cataloguing. All the functions are working. However, a service is recommended
BRACELET: The integrated bracelet has been polished, but is in very good condition. Surface scratches on the clasp.
PLEASE NOTE: This report has been prepared by Christie's specialists and is no substitute for physical examination by you and/or your advisors. Christie's specialists are not trained restorers and the report set forth above is not a comprehensive condition report prepared by a professional conservator. While we make certain observations on the work which we trust are helpful, we recommend you consult your own restorer for a more complete report. Prospective purchasers should bear in mind that this report will not disclose any imperfections which may only be revealed during the course of subsequent restoration. This report is provided to you as a courtesy and Christie's is not responsible for the accuracy or completeness of this report. Buyers are reminded that Christie's warranties with respect to property are limited as set forth in our Conditions of Sale and do not extend to condition.
Effective 7 February 2022 A buyer’s premium is payable by the successful buyer of an item at auction, based on the hammer price of each lot sold. The current buyer’s premium rates are an amount equal to 26% of the hammer price of each lot up to and including £700,000/US$1,000,000; plus 20% of the hammer price from £700,001/US$1,000,001 up to and including £4,500,000/US$6,000,000 and 14.5 per cent from £4,500,001/US$6,000,001.