Santos 100, Ref: 2878, Purchased 15th February 2018 — Cartier. A stainless steel automatic wristwatch

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Estimate: £2,000–£3,000 hammer ≈ $2,559–$3,839
Result: upcoming — 22 September 2020
Performance
Sale: Bonhams — Watches and Wristwatches, London, Knightsbridge · 22 September 2020
Record ID: TB-2026-710766
Record: first seen 21 Jul 2026 · updated 21 Jul 2026 · source ↗
Cite this record: TB-2026-710766 — https://thebasis.art/cite/TB-2026-710766

Eterna. A Stainless Steel Automatic Wristwatch, Santos 100, Ref: 2878, Purchased 15th February 2018. Bonhams, 22 Sep 2020, lot 115. estimate £2,000–£3,000, unsold at time of record. TheBasis.Art, TB-2026-710766.

Sell probability TheBasis model · trained on recorded passes

72% chance this lot finds a buyer · market base rate 72%

Of the 92,006 held-out lots the model scored about 72%, 69% sold.

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Eterna. A Stainless Steel Automatic Wristwatch, Santos 100, Ref: 2878, Purchased 15th February 2018. Bonhams, 22 Sep 2020, lot 115. estimate £2,000–£3,000, unsold at time of record. TheBasis.Art, TB-2026-710766.

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From the same sale Watches and Wristwatches · Sep 2020

Lot	Artist	Estimate
Santos, Ref: 1565, Circa 2000	Cartier. A Lady's Stainless Steel And Gold Quartz Bracelet Watch	£1,600–£2,200
Circa 1780	A Gilt Metal Key Wind Open Face Pocket Watch With Enamel Scene To Reverse	£1,500–£2,000
Circa 1790	A Continental Gold And Polychrome Enamel Key Wind Concealed Ball Form Watch	£1,500–£2,500
Circa 1830	A Continental Gold And Enamel Key Wind Full Hunter Jump Hour Pocket Watch	£800–£1,200
Circa 1830	Charles, 272 Rue St Honoré, À Paris. A Small Continental Gold Key Wind Open Face Pocket Watch	£600–£800
Circa 1920	A 9k Gold Keyless Wind Open Face Pocket Watch	£500–£700

Comparable results nearest sold works, same medium & price band

Artist	Lot	Result USD, incl. premium	Sale
Eterna. A Stainless Steel Automatic Wristwatch	Cartier. Montre bracelet en acier mouvement automatique San	$4,495	Bonhams, Jan 2026
Eterna. A Stainless Steel Automatic Wristwatch	Santos 100, Ref: 2656, Circa 2005		Bonhams, Feb 2024
Eterna. A Stainless Steel Automatic Wristwatch	Luminor Marina, Ref: OP 6560, Case No.BB 1127310, Movement N		Bonhams, Jun 2013
Eterna. A Stainless Steel Automatic Wristwatch	Santos 100, Ref: 2878, Circa 2005		Bonhams, Feb 2023
Eterna. A Stainless Steel Automatic Wristwatch	Santos 100, Ref: 2878, Purchased 28th December 2016		Bonhams, Sep 2023
Omega. A Stainless Steel Automatic Calendar Bracelet Watch	Oyster Perpetual Date, Ref: 1500, Circa 1974		Bonhams, Feb 2026
Eterna. A Stainless Steel Automatic Wristwatch	Santos 100, Ref: 2856, Circa 2005		Bonhams, Feb 2017
Eterna. A Stainless Steel Automatic Wristwatch	Santos 100, Ref: 2656, Circa 2004		Bonhams, Sep 2017

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.