Cortez Blue Conquistador, Ref: 10000 K CC NR, Limited Edition No.12/20, Circa 2010 — Franck Muller. A Limited Edition black DLC coated stainless steel automatic calendar chronograph wristwatch to be sold in aid of Charity

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Estimate: £2,500–£3,500 hammer ≈ $3,443–$4,820
Result
Performance
Sale: Bonhams — Watches and Wristwatches, London, Knightsbridge · 7 September 2021
Record ID: TB-2026-647862
Record: first seen 21 Jul 2026 · updated 22 Jul 2026 · source ↗
Cite this record: TB-2026-647862 — https://thebasis.art/cite/TB-2026-647862

Franck Muller. A Limited Edition Black Dlc Coated Stainless Steel Automatic Calendar Chronograph Wristwatch To Be Sold In Aid Of Charity, Cortez Blue Conquistador, Ref: 10000 K CC NR, Limited Edition No.12/20, Circa 2010. Bonhams, 7 Sep 2021, lot 163. result recorded. TheBasis.Art, TB-2026-647862.

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Franck Muller. A Limited Edition Black Dlc Coated Stainless Steel Automatic Calendar Chronograph Wristwatch To Be Sold In Aid Of Charity, Cortez Blue Conquistador, Ref: 10000 K CC NR, Limited Edition No.12/20, Circa 2010. Bonhams, 7 Sep 2021, lot 163. result recorded. TheBasis.Art, TB-2026-647862.

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From the same sale Watches and Wristwatches · Sep 2021

Lot	Artist	Estimate	Result
Circa 1700	J. De Charmes, London. A Gilt Metal Key Wind Open Face Pocket Watch With Repeat And Alarm	£4,000–£6,000
Circa 1800	Charles Green. A Gold And Enamel Key Wind Open Face Pocket Watch	£1,200–£1,800
Circa 1780	Jean Marchand. A Continental Gold Key Wind Open Face Pocket Watch	£700–£900
Manufactured 1870, sold October 12th 1871	Patek Philippe. A Fine And Rare 18k Gold Keyless Wind Minute Repeating Half Hunter Pocket Watch	£12,000–£18,000	upcoming
Birmingham Hallmark for 1911	Waltham. A 9k Gold Keyless Wind Half Hunter Pocket Watch	£500–£700
Chester Hallmark for 1924	Waltham. A 9k Gold Keyless Wind Full Hunter Pocket Watch	£500–£700

Comparable results nearest sold works, same medium & price band

Artist	Lot	Result USD, incl. premium	Sale
Franck Muller. A Limited Edition Black Dlc Coated Stainless Steel Automatic Calendar Chronograph Wristwatch To Be Sold In Aid Of Charity	Conquistador King, Ref: 10000 K CC NR, Limited Edition No.08	$5,619	Bonhams, Sep 2021
Patek Philippe. An 18k Gold Manual Wind Wristwatch	Calatrava, Ref: 3468, Circa 1970		Bonhams, Sep 2022
Omega. A Stainless Steel Manual Wind Chronograph Bracelet Watch	Speedmaster 'From the Moon to Mars', No.125, Ref: 145.0228,		Bonhams, Sep 2025
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	Rolex. Montre bracelet en acier avec date et second fuseau h		Bonhams, Jun 2024
Patek Philippe. An 18k Gold Manual Wind Wristwatch	Calatrava, Ref: 3468, c. 1970s		Bonhams, Nov 2023
Patek Philippe. An 18k Gold Manual Wind Wristwatch	Circa 1955		Bonhams, Feb 2025
Rolex. A Stainless Steel Automatic Bracelet Watch	Air-King, Ref: 5500, c. 1972		Bonhams, Apr 2026
Patek Philippe. An 18k Gold Manual Wind Wristwatch	Gondolo, Ref: 2528/3, c. 1974		Bonhams, Dec 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.