London Hallmark for 1772 — Sylvens Phylander, London. A silver key wind calendar pair case pocket watch

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Estimate: £500–£700 hammer ≈ $672–$941
Result
Performance
Sale: Bonhams — Watches and Wristwatches, London, Knightsbridge · 16 November 2021
Record ID: TB-2026-647448
Record: first seen 21 Jul 2026 · updated 21 Jul 2026 · source ↗
Cite this record: TB-2026-647448 — https://thebasis.art/cite/TB-2026-647448

Sylvens Phylander, London. A Silver Key Wind Calendar Pair Case Pocket Watch, London Hallmark for 1772. Bonhams, 16 Nov 2021, lot 19. bought in (did not sell). TheBasis.Art, TB-2026-647448.

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Sylvens Phylander, London. A Silver Key Wind Calendar Pair Case Pocket Watch, London Hallmark for 1772. Bonhams, 16 Nov 2021, lot 19. bought in (did not sell). TheBasis.Art, TB-2026-647448.

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From the same sale Watches and Wristwatches · Nov 2021

Lot	Artist	Estimate
Circa 1780	Daniel De St. Leu For George Prior, London. A Fine And Large Gilt Metal And Painted Horn Pair Case Two Train Quarter Striking Clock Watch, Made For The Turkish Market	£2,400–£3,300
London Hallmark for 1778	Michael Lade, Canterbury. A Silver Key Wind Pair Case Pocket Watch	£500–£700
Circa 1770 and later	Alexander Mitchelson, London. A Silver Key Wind Pair Case Pocket Watch With Centre Seconds	£800–£1,200
Circa 1790	Moricand & Compagnie. A Continental Gold And Seed Pearl Set Key Wind Open Face Pocket Watch With Enamel Decoration	£1,800–£2,200
Circa 1800	Charles Green. A Gold And Enamel Key Wind Open Face Pocket Watch	£1,000–£1,500
Circa 1900	An 18k Gold Key Wind Half Hunter Pocket Watch	£700–£900

Comparable results nearest sold works, same medium & price band

Artist	Lot	Result USD, incl. premium	Sale
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Dynamic, Circa 1970	$801	Bonhams, Apr 2024
Jaeger-lecoulture. A Lady's Stainless Steel Manual Wind Wristwatch	Circa 1955		Bonhams, Feb 2025
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Constellation 'Jumbo', Ref: 168.0063/368.0858, Circa 1975		Bonhams, Jul 2023
Cartier. A Lady's Stainless Steel And Gold Quartz Bracelet Watch	Must 21, Circa 1985		Bonhams, Jun 2026
Cartier. A Lady's Stainless Steel And Gold Quartz Bracelet Watch	B.zero1, Ref: BZ 30 S, Circa 2005		Bonhams, May 2021
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Sub 300T, Ref: 59736, Purchased 24th December 2022		Bonhams, Jun 2025
Jaeger-lecoulture. A Lady's Stainless Steel Manual Wind Wristwatch	Circa 1960		Bonhams, May 2022
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Dynamic , Circa 1970		Bonhams, Mar 2026

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.