London Hallmark for 1867 — J.Thomson, London. An 18K gold key wind open face pocket watch

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Estimate: £800–£1,200 hammer ≈ $968–$1,452
Result
Performance
Sale: Bonhams — Watches and Wristwatches, London, Knightsbridge · 22 February 2023
Record ID: TB-2026-516653
Record: first seen 21 Jul 2026 · updated 21 Jul 2026 · source ↗
Cite this record: TB-2026-516653 — https://thebasis.art/cite/TB-2026-516653

J.thomson, London. An 18k Gold Key Wind Open Face Pocket Watch, London Hallmark for 1867. Bonhams, 22 Feb 2023, lot 21. bought in (did not sell). TheBasis.Art, TB-2026-516653.

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J.thomson, London. An 18k Gold Key Wind Open Face Pocket Watch, London Hallmark for 1867. Bonhams, 22 Feb 2023, lot 21. bought in (did not sell). TheBasis.Art, TB-2026-516653.

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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
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Ref: 166.0312, Circa 2000	$1,318	Bonhams, Oct 2023
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Constellation, Ref: 168.047, Circa 1970		Bonhams, Feb 2023
Bulgari. A Stainless Steel Automatic Chronograph Calendar Wristwatch	Assioma, Ref: AA48C14SLDCH, Purchased 19th April 2008		Bonhams, Nov 2022
Bulgari. A Stainless Steel Automatic Chronograph Calendar Wristwatch	Chronomat, Ref: B13050.1, Circa 1995		Bonhams, May 2019
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Dynamic, Circa 1970		Bonhams, Nov 2021
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Seamaster, Ref: 25318000, Sold 24th May 2003		Bonhams, Nov 2019
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Seamaster, Ref: PJ 168.1601, Circa 2000		Bonhams, Jun 2025
Bulgari. A Stainless Steel Automatic Chronograph Calendar Wristwatch	Super Avenger II, Ref: A133712A/L525, Purchased 9th March, 2		Bonhams, Nov 2024

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.