Antiquorum Auctioneers since 1974

Important Modern & Vintage Timepieces

Hong Kong, May 31, 2026

LOT 328

CORUM, REF. 374.743.69/0003 0000, ROMVLVS BILLIONAIRE, FLYING TOURBILLON, 18K WHITE GOLD, DIAMOND, BLUE SAPPHIRE

HKD 200,000 - 400,000

EUR 21,800 - 43,600 / CHF 20,000 - 39,900 / USD 25,600 - 52,000 / JPY 4,000,000 - 7,990,000

Sold: HKD 412,500

An extremely fine and rare, 18K white gold manual-winding wristwatch with flying tourbillon, themainplate and bridge are in sapphire crystal forming a transparent hand-polished frameworkfor the “golden bridge” movement, featuring bezel set with baguette diamonds and baguetteblue sapphire Roman numeral indexes, crown case sides and lugs set with baguette diamonds.
Totalling set with 154 baguette-cut diamonds weighing approx. 8.68 carats, 44 baguette-cutblue sapphires weighing approx. 1.39 carats.


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Grading System
Grade:
Case: 2-8

Very good
Movement: 2*

Very good

Overhaul recommended, at buyer's expense
Dial: 2-01

Very good

Brand Corum

Model Romvlvs Billionaire

Reference  374.743.69/0003 0000

Year sold on 9 Feb 2018

Case No. 2352088

Bracelet leather strap with Corum 18K white gold double deployant clasp

Caliber CO374

Diameter 44 mm.

Weight 94gr. (approx.)

Signature dial, case and movement

Accessories Corum fitted box, Romvlvs certificate, warranty card dated 9 Feb 2018, gemstones certificate, instruction booklet, cloth

Notes

Last known retail price: JPY 57,750,000

A dazzling fusion of haute joaillerie and haute horlogerie — this magnificent Corum Romvlvs Tourbillon showcases exceptional artistry. Crafted in 18K white gold, the bezel case, crown and lugs are lavishly set with a total of 154 baguette-cut white diamonds (~8.68 ct) and 44 baguette-cut blue sapphires (≈1.39 ct), forming the iconic Roman numerals with vibrant contrast. The fully skeletonized dial offers a panoramic view of the dramatically highlighting the mesmerizing tourbillon complication.

Acquired in 2018 and complete with full set of original documents, box and gemstone certificate, it is preserved in excellent condition — a sophisticated and visually captivating work of wearable art from Corum’s celebrated Romvlvs collection.