Ellipse, Ref: 3604/2, Purchased 5th September 1975 — Patek Philippe. An 18K white gold automatic calendar bracelet watch with sigma dial

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

Estimate: £8,000–£12,000 hammer ≈ $9,682–$14,524
Result
Performance
Sale: Bonhams — Watches and Wristwatches, London, Knightsbridge · 22 February 2023
Record ID: TB-2026-516770
Record: first seen 21 Jul 2026 · updated 22 Jul 2026 · source ↗
Cite this record: TB-2026-516770 — https://thebasis.art/cite/TB-2026-516770

Patek Philippe. A Fine 18k White Gold Automatic Calendar Bracelet Watch With Sigma Dial, Ellipse, Ref: 3604/2, Purchased 5th September 1975. Bonhams, 22 Feb 2023, lot 142. result recorded. TheBasis.Art, TB-2026-516770.

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-2026-516770.

Patek Philippe. A Fine 18k White Gold Automatic Calendar Bracelet Watch With Sigma Dial, Ellipse, Ref: 3604/2, Purchased 5th September 1975. Bonhams, 22 Feb 2023, lot 142. result recorded. TheBasis.Art, TB-2026-516770.

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 Watches and Wristwatches · Feb 2023

Lot	Artist	Estimate
Circa 1770	L'epine, A Paris. A Continental Gold Key Wind Open Face Pocket Watch With Enamel Portrait Miniature	£1,000–£1,500
Circa 1770 and later	L'epine, A Paris. A Continental Gold Key Wind Open Face Pocket Watch	£800–£1,200
Circa 1780	L'epine, A Paris. A Continental Gold Key Wind Open Face Pocket Watch	£800–£1,200
Circa 1790	A Continental Gold Key Wind Open Face Pocket Watch	£700–£900
London Hallmark for 1805	George Prior, London. A Silver Key Wind Pair Case Pocket Watch Made For The Turkish Market	£600–£800
Circa 1830	A Continental Gold And Seed Pearl Key Wind Open Face Pocket Watch	£1,200–£1,800

Comparable results nearest sold works, same medium & price band

Artist	Lot	Result USD, incl. premium	Sale
Patek Philippe. A Fine 18k White Gold Automatic Calendar Bracelet Watch With Sigma Dial	Gondolo, Ref: 5030/22J-001, Purchased 20th December 2000	$16,946	Bonhams, Jun 2022
Patek Philippe. A Fine 18k White Gold Automatic Calendar Bracelet Watch With Sigma Dial	Ellipse, Ref: 3605-1, Circa 1970		Bonhams, Sep 2022
Patek Philippe. A Fine 18k White Gold Automatic Calendar Bracelet Watch With Sigma Dial	Calatrava, Ref: 3445/6, Manufactured 1971, Purchased Septemb		Bonhams, Feb 2024
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	GMT Master II 'Batman', Ref: 116710BLNR, Purchased 14th Augu		Bonhams, May 2025
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	Rolex. Belle montre bracelet en acier avec date et 2nd fusea		Bonhams, Oct 2025
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Deepsea Sea-Dweller, Ref: 116660,		Bonhams, Apr 2022
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Explorer, Ref: 1016, Circa 1957		Bonhams, May 2024
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	Explorer II, Ref: 1655, Circa 1972		Bonhams, Dec 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.