lot 29

Audemars Piguet

Royal Oak Trees Foundation

Estimate CHF 40 000 / CHF 45 000
Starting bid CHF 40 000

Hammer price CHF 67 000
Total bids 24
Buyer’s premium will not be charged


CaseOctagonal yellow gold case 750/1000 with a sapphire caseback, limited edition
BraceletIntegrated yellow gold 750/1000 bracelet
DialWhite Tapisserie dial, with applied luminous indices "Time for Trees Foundation" date indication at 3 at o'clock
MovementRhodium-plated automatic movement, with Geneva stripes, solid rose gold rotor
Movement No.491518
Case No.E-26635

Condition report

Case:Very good, small sign of wear
Bracelet:Very good, small sign of wear
Dial:Mint condition
Movement:All functions working properly
Amplitude (Dial on top/Lift angle 52):Approx 340 degrees
Accuracy (Dial on top):Approx + 1 sec/day
Exctract from archives:Yes


An extremely rare, charismatic, and unusual limited-edition yellow-gold self-winding wristwatch of the famous Swiss watch brand Audemars Piguet, founded in 1875. Limited edition launched in 1999. Case in 18k yellow gold, diameter 36mm, 8mm thick, sapphire caseback with “Audemars Piguet Édition Limitée” inscription and E-series case number engraved on rim. Matt silvered dial with enlarged ‘Grande Tapisserie’ pattern and circular brushed oak tree image engraved at the centre, “Audemars Piguet Fondation” inscription at 6 o’clock, and ‘AP’ applied logo at 12 o’clock. Self-winding caliber 2225, decorative rotor with ‘AP’ emblem, two oak leaves and heavy segment in 21k gold, power reserve of up to 40 hours. Functions – indication of time in hours, minutes and seconds, date aperture at 3 o’clock. Royal Oak 18k yellow gold bracelet, Royal Oak second-generation double folding clasp. Limited edition of 50 pieces.

Lot essay

The sale of three commemorative limited editions, issued by Audemars Piguet in collaboration with the environmental NGO Time For Trees, led to a portion of the proceeds contributing to reforestation around the world. These limited editions are notable due to the unique dial configurations, as well as other rare features. The present limited-edition reference 15100BA was launched in 1999, together with the steel model 15100ST, also presented in this sale (lot 45). The release of both series was timed to coincide with the 125th anniversary of the brand, celebrated in 2000. Both followed the first series – the stainless-steel reference 14990ST of 1997 (limited edition of 250 pieces), featuring a dark-blue dial with an original small ‘Tapisserie’ pattern, and exhibition caseback with an oak tree engraved on the rotor.

The present reference 15100BA is a notable example of a medium-sized Royal Oak, produced as a variation of a basic 14790 reference in full 18k yellow gold execution and featuring a unique dial design with enlarged ‘Grande Tapisserie’ pattern and circular brushed oak tree image engraved at the centre. The caseback has a transparent window allowing one to discover the self-winding caliber 2225, which has a decorative oscillating weight with ‘AP’ brand symbol and two oak leaves engraved. The present reference, as well as steel 15100ST and the original ‘Time for the Trees Foundation’ reference 14990ST, are very rare and therefore outstanding 36mm Royal Oak references. The exhibition caseback gives a rare opportunity to see the self-winding caliber 2225, which is based on a caliber 889 movement-blank supplied by Jaeger-LeCoultre, long-term partner and supplier of Audemars Piguet.

An extremely rare, charismatic, and unusual medium-sized Royal Oak, which has an engraved image of an oak tree on the dial that is extremely appropriate for the Royal Oak collection

Until fairly recently, medium-sized 36mm Royal Oaks had rarely attracted the attention of collectors and specialists, being in the shadow of the charismatic historical reference 5402 ‘Jumbo’ and its subsequent iterations. The recent surge in demand for classic Royal Oak collection references, most notably the ‘Jumbo’, perpetual calendars, limited-editions and chronographs, and the extraordinary rise in secondary market prices that has resulted from this, has generated a generally significant increase in public interest in other, previously overshadowed items that had not generated active demand. This category also includes 36mm medium-sized Royal Oaks, such as the classic references 14790 and, in particular, the rare limited editions featuring unique design configurations, such as the present lot.

Reasons to bid

The present lot is a notable example of a rare limited-edition medium-sized Royal Oak with a dial that serves to evoke a ‘green’ environmental theme. Nowadays, due to the incredible popularity of Audemars Piguet Royal Oak watches, medium-sized Royal Oak references are gaining significant interest as collectibles and as investments. Therefore, the Time for the Trees Foundation Édition Limitée Ref. 15100BA.OO.0789BA.01 would be a very attractive purchase for the collector who desires an extremely rare, charismatic, and unusual medium-sized Royal Oak, which has an engraved image of an oak tree on the dial that is extremely appropriate for the Royal Oak collection, and produced by a world-renowned traditional watch brand, one of the undisputed leaders in the haute horlogerie watch market.