Speedmaster Moonphase , Ref: 304.30.44.52.01.001, Purchased 15th September 2017 — Omega. A stainless steel automatic calendar chronograph bracelet watch with moon phase and Co-Axial Escapement

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Estimate: £4,000–£6,000 hammer ≈ $5,097–$7,646
Result
Performance
Sale: Bonhams — Watches and Wristwatches, London, Knightsbridge · 13 November 2024
Record ID: TB-2026-396227
Record: first seen 20 Jul 2026 · updated 22 Jul 2026 · source ↗
Cite this record: TB-2026-396227 — https://thebasis.art/cite/TB-2026-396227

Omega. A Stainless Steel Automatic Calendar Chronograph Bracelet Watch With Co-axial Escapement, Speedmaster Moonphase , Ref: 304.30.44.52.01.001, Purchased 15th September 2017. Bonhams, 13 Nov 2024, lot 153. bought in (did not sell). TheBasis.Art, TB-2026-396227.

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Omega. A Stainless Steel Automatic Calendar Chronograph Bracelet Watch With Co-axial Escapement, Speedmaster Moonphase , Ref: 304.30.44.52.01.001, Purchased 15th September 2017. Bonhams, 13 Nov 2024, lot 153. bought in (did not sell). TheBasis.Art, TB-2026-396227.

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From the same sale Watches and Wristwatches · Nov 2024

Lot	Artist	Estimate
Circa 1830	Lepine, Paris. An 18k Gold Key Wind Open Face Quarter Repeating Pocket Watch	£1,500–£2,000
Circa 1830	An 18k Gold Key Wind Quarter Repeating Open Face Pocket Watch	£1,200–£1,800
Marine, Circa 1939	Omega. An Early And Rare Stainless Steel Manual Wind Rectangular Wristwatch	£1,500–£2,000
Circa 1935	Rolex. A Stainless Steel And Gold Manual Wind Wristwatch	£1,200–£1,800
Circa 1936	Cartier. An Unusual Black Enamel And Silver Manual Wind Bangle Watch	£3,000–£4,000
Polyplan, London Import mark for 1919	Movado. A Rare 18k Gold Manual Wind Curved Rectangular Bracelet Watch	£3,000–£4,000

Comparable results nearest sold works, same medium & price band

Artist	Lot	Result USD, incl. premium	Sale
Rolex. A Stainless Steel Automatic Bracelet Watch	Rolex. Montre bracelet en acier mouvement automatique Explo	$6,621	Bonhams, Feb 2024
Rolex. A Lady's Stainless Steel And Gold Automatic Calendar Bracelet Watch	Yacht-Master, Ref: 16623, Circa 2006		Bonhams, May 2024
Omega. A Stainless Steel Automatic Calendar Chronograph Bracelet Watch With Co-axial Escapement	Planet Ocean, Purchased 10th March 2011		Bonhams, Jun 2025
Rolex. A Stainless Steel Automatic Bracelet Watch	Explorer 'Super Precision', Ref: 5500, Circa 1962		Bonhams, Sep 2022
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Datejust 36, Ref: 126200, Purchased 1st July 2022		Bonhams, Jun 2023
Rolex. A Lady's Stainless Steel And Gold Automatic Calendar Bracelet Watch	Datejust, Ref: 79173, Circa 2003		Bonhams, Feb 2023
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Rolex. Montre bracelet en acier avec date mouvement automati		Bonhams, Oct 2024
Omega. A Stainless Steel Automatic Calendar Chronograph Bracelet Watch With Co-axial Escapement	Planet Ocean, Ref: 178.1652, Circa 2010		Bonhams, May 2025

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.