World-renowned watch auction house Antiquorum proudly announces its highly anticipated annual Autumn auction — “YOUR Horological Treasure Hunt Expedition” auction, to be held at the Mandarin Oriental Hotel in Hong Kong on Sunday, November 30th, 2025. This auction brings together 374 rare masterpieces from around the world, each representing the ultimate expression of watchmaking craftsmanship, offering watch collectors an unprecedented feast of high-end watchmaking art.
The auction preview will be held from November 27th to 29th, 2025, at the Antiquorum Hong Kong showroom, inviting watch enthusiasts to experience the unique charm and discover the delicate craftsmanship of each timepiece in details.
Ms. Connie Siu, Managing Director of Antiquorum Hong Kong, stated: ” We are blessed to have watch collectors to entrust us with their piece unique & numbered one pieces. Antiquorum treasures our collectors who consign to us and buy from us for decades. We look forward to witnessing this feast of watchmaking art with all watch connoisseurs in Asia.“
AUCTION HIGHLGHTS
Lot 358: Patek Philippe – Ref. 3448, Perpetual Calendar, 18K Yellow Gold
First Time to Auction, The Prized “Padellone”
Estimate HKD1,000,000 – 2,000,000
The Patek Philippe Reference 3448 “Padellone” stands as one of horology’s most significant achievements. It is the first automatic perpetual calendar wristwatch produced by Patek Philippe (1962–1981). A total of only 586 pieces were made, and this watch is one of those rare and exceptional examples. This particular example has been meticulously preserved for over two decades, which explains its extraordinary state of conservation. It is accompanied by the original Patek Philippe certificate, an extract from the archives, and the original Patek Philippe fitted box.
Lot 160 – Patek Philippe Ref. 5170, Chronograph, Pulsometer Scale, 18K Yellow Gold
A ‘Number 8’ out of 50
Estimate HKD300,000 – 600,000
This stunning watch carries the DNA of Patek Philippe, it defines the spirit of classic chronograph design. In commemorating Beyer’s 250th anniversary, the dial bears the ‘BEYER’ signature of Switzerland’s oldest watch retailer. Completed with all accessories and the original Beyer sale invoice, unique certificate of origin signed by Beyer and Patek Philippe.
Lot 349 – Patek Philippe Solar-Powered Dome Table Clock, Gilt Brass and Paillonné Enamel
Estimate HKD850,000 – 1,500,000
An extremely fine and unique, solar-powered mechanical Patek Philippe gilt brass clock featuring stunning blue paillonné enamel decorated with gilt floral patterns and three peacocks depicted in different positions. Crafted by the renowned enameller Marie Françoise Martin, this clock represents the pinnacle of Traditional Métiers d’Art. A testament to both technical ingenuity and sublime artistry, it remains a peerless and coveted treasure. Accompanied by 2 extracts from the archives and fitted cardboard case.
Rolex Spotlight
Lot 143 – Rolex Ref. 6265, Daytona, Steel Chronograph,” BIG RED” Retailed by Tiffany & Co.,
Estimate HKD900,000 – 1,800,000
This is a very fine and extremely rare, manual winding chronograph wristwatch with matte black, ‘Big Red’ and Tiffany & Co. signed dial. Retailed by Tiffany & Co, Accompanied by service paper.
Lot 163 – Rolex Ref. 8171, Triple Date and Moon Phase, Steel
Estimate HKD700,000 – 1,500,000
It is remarkably the one of the few models with moon phases made by Rolex. Only in production for a very brief period between 1949 and 1952, the reference 8171 ‘Padellone’ can be considered as one of the most desirable vintage Rolexes.
Lot 356 – Rolex Ref. 5100, BETA 21, Quartz, 18K White Gold
Estimate HKD380,000 – 500,000
This is an extremely rare and unusual 18k white gold quartz wristwatch with BETA 21 movement, featuring quick-set date, centre seconds, and an integrated bracelet, numbered 185. This significant piece represents an important chapter in both horological history and Rolex’s legacy during the quartz revolution. It marks Rolex’s first venture into quartz technology, making it a truly historic timepiece.
Lot 357 – Rolex Ref. 18239, Day-Date, Diamond Set Blue Stella Dial, 18K White Gold
Estimate HKD600,000 – 1,000,000
Rolex Ref. 18239 Day-Date, an 18K white gold self-winding wristwatch with a diamond-set blue stella dial, is an extremely rare, possibly unique piece.
Unveiled Audemars Piguet – True Horological Treasures
In 1987, Audemars Piguet elevated legendary design to new heights of opulence with the Haute Joaillerie version of the Royal Oak, which could be revealed in these 3 lots.
Lot 355 – Audemars Piguet Ref. 14575, Royal Oak Haute Joaillerie, PIÈCE UNIQUE, 18K White Gold and Diamond
Estimate HKD900,000 – 1,800,000
Reference 14575, was an exercise in extreme rarity; according to AP Chronicles, only four units were sold between 1987 and 1990: one in yellow gold in 1987, two in yellow gold in 1988, and a final, unique piece in white gold in 1990. Reference 14575BC, is that breathtaking final watch—a PIÈCE UNIQUE in 18K white gold. It is a veritable cascade of light, with its bracelet, bezel, and dial meticulously paved with 578 brilliant- and baguette-cut diamonds, weighing approximately 15.53 carats. As the sole example crafted without a date window, it holds a distinct place in history, representing the ultimate fusion of the Royal Oak’s iconic form with the highest expression of the jeweller’s craft. Accompanied by certificate of authenticity.
Lot 165 – Audemars Piguet Ref. 15055BC.ZZ.0978BC.01, Royal Oak Joaillerie, 18K White Gold, Diamond and Emerald
Estimate HKD800,000 – 1,500,000
Reference 15055BC.ZZ.0978BC.01 is an exceptionally rare and dazzling Royal Oak Haute Joaillerie masterpiece in 18K white gold, entirely paved with brilliant-cut diamonds. With a total production of only 19 pieces between 1999 and 2003, this watch represents the pinnacle of Audemars Piguet’s artistry in both gem-setting and watchmaking. Accompanied by certificate of authenticity.
Lot 162 – Audemars Piguet Ref. 25592PT, Quantieme Perpetual, No. 4, Platinum
Fresh to the Market
Estimate HKD240,000 – 480,000
Reference 25592PT is an extremely rare, first time to auction, platinum and diamond-set bezel, diamond-set indexes, skeletonized, self-winding quantieme perpetual calendar wristwatch with moonphases. The 25592PT is considered an earlier production model and potentially even rarer than the already scarce 25670PT. Accompanied by extract from the archives and repair invoice.
A Piece of Greubel Forsey’s Milestone
Lot 374 – Greubel Forsey, Double Tourbillon 30°, No. 24, 18K White Gold
Estimate HKD1,300,000 – 3,000,000
The Double Tourbillon 30° represents the inaugural creation of master watchmakers Robert Greubel and Stephen Forsey, who founded their eponymous manufacture in 2004. This revolutionary timepiece features their first and most iconic invention: a double tourbillon mechanism with one cage inclined at 30° rotating in 60 seconds inside another cage completing a revolution every four minutes. Full set of accessories, accompanied by Greubel Forsey fitted box, owner’s book including certificate of authenticity with Robert Greubel and Stephen Forsey’s hand signature and operating instructions.
The privileged new connoisseur of this lot shall receive a complimentary new strap and service rights certificate from Greubel Forsey offering maintenance service.
PIÈCE UNIQUE – The ONLY ONE:
Lot 345 – Daniel Roth, Possibly Piece Unique, Prototype 01, Split Second Chronograph and Tourbillon, Steel
Innovative Spirit of Independent Watchmaking
Estimate HKD500,000 – 800,000
This exceptional timepiece represents a significant horological unlimited creativity from the legendary Daniel Roth atelier. According to research, this timepiece is possibly a unique prototype (Prototype 01), featuring a tourbillon regulator and split-second chronograph mechanism calibre DR8300.
Lot 350 – De Bethune, Ref. CS152, Dream Watch 1, PIÈCE UNIQUE, Blued Grade 5 Titanium
A Landmark of Modern Watchmaking
Estimate HKD600,000 – 1,200,000
This revolutionary design De Bethune Dream Watch 1, Reference CS152, cased in the brand’s signature blued titanium, represents the perfect convergence of avant-garde design and technical mastery. From the moment it graces the wrist, the Dream Watch 1 defies convention. Its case is an architectural marvel, celebrated as the first in watchmaking to feature floating lugs beneath while remaining absent from the top. It is also a PIÈCE UNIQUE at your taste. Accompanied by De Bethune certificate of origin and push pin.
Lot 346 – Maîtres Du Temps Ref. C3R.55.00.161, Chapter 3, PIÈCE UNIQUE, 18K Pink Gold
Artistic Works by Most Celebrated Independent Watchmasters – Kari Voutilainen and Andreas Strehler
Estimate HKD150,000 – 300,000
The Maîtres Du Temps Chapter 3 Reveal in 18K pink gold represents an extraordinary collaboration between two of the world’s celebrated independent watchmakers: Kari Voutilainen and Andreas Strehler. Created as a PIÈCE UNIQUE, this 42mm timepiece exemplifies the pinnacle of haute horlogerie craftsmanship.
The hand-wound SHC03 caliber features Voutilainen’s signature finishing techniques and a Straumann balance spring with Breguet overcoil, while Strehler’s mechanical genius is evident in the innovative roller system. The sapphire caseback bears both watchmakers’ signatures, offering a view of the meticulously finished movement.
Lot 354 – Harry Winston, Quadruple Tourbillon Pocket Watch, PIÈCE UNIQUE, 18K White Gold, Diamond and Aventurine
The Horological and Joaillerie Works of Art
Estimate HKD2,000,000 – 4,000,000
This breathtaking 18K white gold and diamond-set pocket watch (numbered 1/1) represents the culmination of Harry Winston’s decade-long “Histoire de Tourbillon” project. Its openworked dial showcases four exceptional 36-second tourbillons connected by three differentials—significantly faster than conventional 60-second tourbillons. The timepiece comes with an 18K white gold display holder adorned with aventurine marquetry and diamonds, designed to echo the entrance of Harry Winston’s Fifth Avenue flagship store, completing this extraordinary achievement in haute horlogerie. Full set accompanied by 18K white gold pocket watch chain, international warranty, diamond certificate, leather cardholder, instruction booklet.
Enamel Craftsmanship Treasures
Multiple lots of enamel pocket watches offering traditional cloisonné enamel techniques, perfectly interpreting the flawless combination of watchmaking and art.
Lot 340 – Attributed To Bovet, A Pair of Mirror Enamel Pocket Watches, Made For Chinese Market, Enamel, Pearl, Gilt Brass
Estimate HKD400,000 – 700,000
A pair of Bovet pocket watches crafted in gilt brass with beautiful enamel decoration were specifically made for the Chinese market. The cases are edged with half pearls, and the case backs display enchanting mirror image enamel paintings of “Early Summer Bouquet.” Produced circa the 1870s, these matched watches not only reflect the Chinese cultural preference for pairs symbolizing harmony and good fortune but also highlight the deep historical ties between Swiss watchmaking and China during the era. Accompanied by non-original wooden fitted box.
Lot 341 – Henry Moser, Minute Repeating and Perpetual Calendar Pocket Watch, Made For Russian Market, Enamel and 18K Yellow Gold,
Estimate HKD300,000 – 600,000
Another exceptional pocket watch was made by H. Moser & Cie in around 1913 specifically for the Russian market and for the distinguished Prince Serge Alexandrovitch Dolgorouky. It is a large, heavy, keyless, hunting case enamel painting pocket watch with minute repeating, perpetual calendar and moon phases.
ANTIQUORUM HONG KONG AUCTION: IMPORTANT MODERN AND VINTAGE TIMEPIECES & JEWELRY AUCTION
Date: Sunday, November 30th, 2025
Location: MANDARIN ORIENTAL
2/F, Mandarin Oriental HK,
5 Connaught Road Central, Hong Kong
Time:
10am (Lot 1-165)
2pm (Lot 166-374)
EXHIBITION PREVIEW
Date: November 27th – 29th, 2025
Location: Antiquorum Auctioneers (HK) Ltd.
Room 2408, 24/F, No.9 Queen’s Road Central, Central, Hong Kong
Time: 11am-7pm
About Antiquorum
Established in Geneva in 1974, Antiquorum has carved a niche as the world’s foremost auctioneer of fine timepieces, setting numerous world records and pioneering the sale of watches as major collectible assets. Antiquorum continues to attract a diverse and passionate audience of watch enthusiasts and collectors.
For more information about the auction, including registration details and a complete catalogue of the lots, please visit: www.antiquorum.swiss