LIVE LOTS 17,750,197 HOUSES 866 UNSOLD RECORDED 4,679,234 UPDATED NIGHTLY
TheBasis.Art

Lot 7 · Important Watches featuring Masterworks of Time

An Exceptional and Heavy Two-Colour Gold Open-Faced Keyless One-Minute Tourbillon Watch with Up-And-Down Indication No. 3356 'Montre Régulateur À Tourbillon' Sold to Monsieur Guillomot on 13 September 1939 for 30,000 Francs No. 3356 'Montre Régulateur À Tourbillon' Sold to Monsieur Guillomot on 13 September 1939 for 30,000 Francs [ 寶璣「montre Régulateur À Tourbillon」雙色黃金一分鐘陀飛輪懷錶,編號3356,1939年9月13日以30,000法郎售予guillomot先生]

Breguet

Catalog image of AN EXCEPTIONAL AND HEAVY TWO-COLOUR GOLD OPEN-FACED KEYLESS ONE-MINUTE TOURBILL…
Catalog image, served from the auction house’s site — © the house.

Sign in to download a work market report (PDF) — placement, comparables, and the artist's market, generated from the record.

Estimate
CHF 40,000–CHF 60,000 hammer ≈ $43,606–$65,409
Result
Performance
Sale
Sotheby's — Important Watches featuring Masterworks of Time, Geneva · 11 November 2020
Record ID
TB-2026-4873625
Record
first seen 28 Jul 2026 · updated 6 Sep 2026 · source ↗
Cite this record
TB-2026-4873625 — https://thebasis.art/cite/TB-2026-4873625

Breguet, AN EXCEPTIONAL AND HEAVY TWO-COLOUR GOLD OPEN-FACED KEYLESS ONE-MINUTE TOURBILLON WATCH WITH UP-AND-DOWN INDICATION NO. 3356 'MONTRE RÉGULATEUR À TOURBILLON' SOLD TO MONSIEUR GUILLOMOT ON 13 SEPTEMBER 1939 FOR 30,000 FRANCS NO. 3356 'MONTRE RÉGULATEUR À TOURBILLON' SOLD TO MONSIEUR GUILLOMOT ON 13 SEPTEMBER 1939 FOR 30,000 FRANCS [ 寶璣「MONTRE RÉGULATEUR À TOURBILLON」雙色黃金一分鐘陀飛輪懷錶,編號3356,1939年9月13日以30,000法郎售予GUILLOMOT先生]. Sotheby's, 11 Nov 2020, lot 7. bought in (did not sell). TheBasis.Art, TB-2026-4873625.

Cite this record permanent · resolvable · quotable

Appraisal reports, insurance claims, catalogue entries and footnotes. The identifier never changes, and anyone can resolve it back to this page at https://thebasis.art/cite/TB-2026-4873625.

Breguet, AN EXCEPTIONAL AND HEAVY TWO-COLOUR GOLD OPEN-FACED KEYLESS ONE-MINUTE TOURBILLON WATCH WITH UP-AND-DOWN INDICATION NO. 3356 'MONTRE RÉGULATEUR À TOURBILLON' SOLD TO MONSIEUR GUILLOMOT ON 13 SEPTEMBER 1939 FOR 30,000 FRANCS NO. 3356 'MONTRE RÉGULATEUR À TOURBILLON' SOLD TO MONSIEUR GUILLOMOT ON 13 SEPTEMBER 1939 FOR 30,000 FRANCS [ 寶璣「MONTRE RÉGULATEUR À TOURBILLON」雙色黃金一分鐘陀飛輪懷錶,編號3356,1939年9月13日以30,000法郎售予GUILLOMOT先生]. Sotheby's, 11 Nov 2020, lot 7. bought in (did not sell). TheBasis.Art, TB-2026-4873625.

Test the link

The citation omits the realized price because this record is not unlocked. Everything else in it is complete and permanent.

From the same sale Important Watches featuring Masterworks of Time · Nov 2020

LotArtistEstimateResult
Padellone, Ref 8171 Stainless Steel Triple Calendar Wristwatch with M… Rolex CHF 50,000–CHF 100,000
Royal Oak, Ref 5402Sa Stainless Steel and Yellow Gold Wristwatch with… Audemars Piguet CHF 30,000–CHF 50,000
invention piece 1 ref gf02n limited edition pink gold double tourbill… Greubel Forsey CHF 200,000–CHF 300,000
'bombay' ref 6290 yellow gold wristwatch with fancy lugs and blue ena… Rolex CHF 50,000–CHF 100,000
chronometre a resonance early pink gold dual time zone wristwatch wit… F.p. Journe CHF 50,000–CHF 100,000
ref 533 pink gold chronograph wristwatch made in 1941 [百達翡麗533型號粉紅金計時… Patek Philippe CHF 50,000–CHF 100,000

Comparable results nearest sold works, same medium & price band

ArtistLotvs. estimateResult USD, incl. premiumSale
Breguet Untitled $61,171 Phillips, Nov 2024
Breguet Reference 5377 | A platinum tourbillon wristwatch with power Sotheby's, May 2023
Breguet Reference 3567 Tourbillon | A limited edition platinum tourb Sotheby's, Jun 2025
Breguet Reference 3357 Classique Tourbillon | A yellow gold tourbill Sotheby's, Jun 2026
Breguet Reine de Naples, Reference 8939 | A white gold and diamond-s Sotheby's, Apr 2023
Breguet Reference 7047BR/G9/9ZU Tradition ‘Grande Complication | A p Sotheby's, Jun 2023
Breguet Reference 3135BR | A pink gold semi-skeletonized automatic w Sotheby's, Dec 2025
Breguet Classique, Reference 3577 | A pink gold tourbillon chronogra Sotheby's, Feb 2022

The closest sold results by price, artist, and medium — the appraiser's comp set, generated from the corpus. All figures converted to USD at current reference rates.

This price costs one credit

Realized prices are metered. A Research Pass reads 50 of them for $19 — bought once, never expires, and a record you open stays open. Sign in to spend credits you already have, or buy a pass.

No credits? Buy a Research Pass — $19