Audemars Piguet
Royal Oak | perpetual calendar | gold

Reference 25654BA

Regular price


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Audemars Piguet
Royal Oak | perpetual calendar | gold

Reference 25654BA

Regular price


It’s been 45 years since the creation of the original Audemars Piguet Royal Oak and this now classic piece, is more popular than ever. First unveiled by Audemars Piguet in the 1970s and designed by Gerald Genta, who incidentally designed the Patek Philippe Nautilus amongst others, the Royal Oak has become a cultural icon due to its distinctive features and its role as a pioneer for high-end luxury sports watches.

A Perpetual Calendar Royal Oak

The first Royal Oak to feature a perpetual calendar complication was released in 1983, as the reference 5554 (later designated the ref. 25554). Following this, the ref. 25654 was introduced (seen in this example), featuring the same refined aesthetic. As a result of the watch’s divergent approach, only 800 examples of the ref. 25654 were produced between 1983 and 1998 - limited to just 422 in yellow gold.

At the time, the combination of the sporty, Royal Oak case and complicated perpetual calendar movement was an unusual, forward-thinking approach by the brand. In recent years, the Royal Oak Quantième Perpétuel has since been the canvas on which Audemars Piguet have experimented and redefined its perpetual calendars, introducing various unique interpretations. This reference 25654 represents one of the first steps in this ongoing legacy.

The Design

This rare, gold, ref. 25654BA example features a lightly-textured, champagne dial with black indicators and blued subsidiary hands. The layout of the dial includes all the traditional indications of a perpetual calendar: day, date, astronomical moon (with graduation for moon age) and month. It features original gold stick hands, a feature rarely found in Royal Oak watches. The sub-dials are slightly recessed, giving the dial greater depth and texture. It features the "Audemars Piguet" signature in small lettering, only found on the earlier examples of the reference 25654, before the brand adopted its modern signature style. 

The gold case and bracelet are excellently finished, with angular, beveled and polished edges - striking the perfect balance between utilitarian function and elegant design. The polished screws, bezel and case edges fantastically-contrast with the brushed surface of the case and bracelet. The watch features its original unsigned crown, white gold clasp and clasp cover with correct "AP" signature. 

At 39mm in diameter, and only 9.3mm thick, this Royal Oak Quantième Perpétuel case is a beautiful twist of perspectives and size. On the reverse, the outer-case back correctly displays the unique serial number (C-61XXX), along with its sequential case number (6XX). The Ref. 25654ST is housed in a 39mm case (like the 5402 'Jumbo’) - succeeded in 2015 by the latest generation of 41mm perpetual calendars.

The Movement

This Royal Oak Quantième Perpétuel is powered by the AP caliber 2120/2800, derived from Jaeger-LeCoultre’s legendary ultra-thin JLC 920 calibre movement. The caliber 2120 was an initial project of Jaeger LeCoultre in 1967, funded and contributed by Audemars Piguet, and famous for its adoption by Audemars Piguet, Patek Philippe and Vacheron Constantin.

The ultra-thin automatic 2120/2800 calibre features 38 working jewels, Gyromax balance and four ruby wheels to support the full-diameter rotor, which runs on a beryllium rail for stability. The AP calibre 2120 remains the thinnest full-rotor self-winding movement in the world, considered by many as one of the most technically refined wrist-watch movements ever made.

The Set

This Royal Oak 25654BA is accompanied by an Authenticity and Exclusivity Certificate issued by Audemars Piguet, which confirms the case, movement and serial numbers. It is also accompanied by an Extract from the Archives (to follow).

Brand: Audemars Piguet
Model: Royal Oak Ref. 25654BA Quantième Perpétuel
Movement: mechanical automatic AP Calibre 2120/2800
Functions: perpetual calendar: month, date, day, moon-phase; hours, minutes
Features: lightly-textured champagne dial, blue hands
Case: 39 mm yellow gold
Crystal: sapphire front
Bracelet: yellow gold AP-stamped bracelet and white gold clasp
Year: 1989
Box & papers: Authenticity and Exclusivity Certificate & Extract from the Archives (to follow)
This Audemars Piguet Quantième Perpétuel 25654BA comes with an Authenticity and Exclusivity Certificate, which confirms the case, movement and serial numbers. It is also accompanied by an Extract from the Archives (to follow). The case and bracelet are excellently finished, with angular, beveled, polished and granular surfaces. The case shows signs of having been polished in the past, with the bracelet aperture on lower left lug being slightly elongated and interrupting the polished bevel. Overall, the case retains its original shape and is in good condition, with superficial marks consistent with light wear, notably on the bracelet and bezel (between 7 and 8 o'clock).

The original champagne dial is unrestored, with some small marks visible close to the "11" on the date sub-dial at 3 o'clock and above the "M" of "Swiss Made" at 6 o'clock (with some superficial scratches also present on the sapphire glass). The bracelet remains tight, with limited stretch, and has 19 links, including 3 removable ones. The 2120/2802 calibre movement of this 25654BA comes with a two-year warranty from A Collected Man.

All of our pre-owned watches have undergone thorough mechanical inspections, including being ultrasonically cleaned, serviced and resealed if appropriate and tested for at least four days, to ensure they meet our highest timekeeping standards. Our pre-owned and vintage watches, unless stated otherwise, are covered by a full or a limited twenty-four month warranty. For example, due to their age, some vintage watches should not be subjected to the same conditions as when they were new. Please see our Terms & Conditions for further information. 

All of our new watches are covered by the warranty from the original manufacturer. Please contact us for further information.

We offer worldwide delivery on all of our watches.

If ordering from the UK or Europe before 1 PM, your watch will be sent the same working day. The courier will depend on the value of the watch, with all watches delivered the next working day.

If ordering from outside Europe, delivery will depend on choice of courier and destination. 

Please note, that prices are quoted gross of VAT (unless expressly stated otherwise) and that preowned goods (in the United Kingdom) are subject to a marginal rate of VAT, which can not be reclaimed. For further information, please see here.

You can cancel your order without giving any reason, within 14 days from the day the watch has been delivered to you.

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