Antiquorum Auctioneers since 1974

Important Modern & Vintage Timepieces

Hong Kong, May 31, 2026

LOT 333

ALCHEMISTS MANUFACTURE, REF. AC003, CU29, CUPRUM 479, COPPER, SILVER, GOLD ALLOY

HKD 350,000 - 600,000

EUR 38,100 - 66,000 / CHF 34,900 - 60,000 / USD 44,700 - 77,000 / JPY 6,990,000 - 11,980,000

Sold: HKD 1,625,000

A very fine and rare Cuprum 479 alloy (A patent alloy comprising over 80% copper mixed with gold and silver) manual winding wristwatch with atmosphere-shaped sapphire crystal, semi-openworked dial, subsidiary seconds and power reserve.


Grading System
Grade:
Case: 2-8

Very good

Movement: 2*

Very good

Overhaul recommended, at buyer's expense

Dial: 1-01

As new

HANDS Original

Brand Alchemists Manufacture

Model CU29

Reference AC003

Year circa 2019

Bracelet leather strap with Alchemists Cuprum 479 alloy pin buckle

Caliber AC003

Diameter 45.5mm.

Signature dial, case and movement

Notes

This exceptional and rare Alchemists Cu29 (Reference AC 003), “Chapter 1” of the brand’s trilogy, executed in the proprietary Cuprum 479 alloy. One of the most distinctive and philosophically profound independent timepieces of the modern era, personally designed, assembled, and hand-finished by master watchmaker Hervé Schlüchter, whose “HS” signature proudly graces the movement.

Crafted in 2019 as the inaugural creation of Alchemists Mechanical Healing, this Cu29 embodies the brand’s alchemical ethos: the transformation of base materials into a harmonious object of beauty and purported well-being. The case, crown, buckle, and numerous movement components are fashioned from the patented Cuprum 479 alloy — a stable, warm-toned blend of copper with gold and silver — whose curative virtues and elegance are eloquently engraved on the solid caseback alongside the poetic “Creating Better” and “ALCHEMISTS” motifs.

The in-house manual-wind Calibre AC 003 is a tour de force of traditional haute horlogerie: 362 components, 56 jewels, a 72-hour power reserve delivered by two parallel barrels (a tribute to George Daniels), a rare cylindrical blued hairspring with variable-inertia balance, peripheral power-reserve indicator, and an inverted architecture that reveals the full mechanical drama beneath the super-domed sapphire crystal. Every component has been subjected to obsessive hand-finishing — beveling, black polishing, engraving, and lacquering — by a single watchmaker, with the movement assembled twice to achieve absolute perfection.

A true mechanical poem that marries cutting-edge engineering with centuries-old artisanal tradition, this Cu29 stands as a collector’s masterpiece of emotion, philosophy, and horological excellence — a living embodiment of “Mechanical Healing” destined for the most discerning connoisseurs.