Speedmaster 'Ultraman', Ref: ST 145.012, Produced 16th May 1968 — Omega. A rare and unusual stainless steel manual wind chronograph bracelet watch offered on behalf of the original owner

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Estimate: £20,000–£30,000 hammer ≈ $24,166–$36,249
Result
Performance
Sale: Bonhams — Fine Watches, London, New Bond Street · 15 June 2022
Record ID: TB-2026-543144
Record: first seen 21 Jul 2026 · updated 22 Jul 2026 · source ↗
Cite this record: TB-2026-543144 — https://thebasis.art/cite/TB-2026-543144

Omega. A Rare And Unusual Stainless Steel Manual Wind Chronograph Bracelet Watch Offered On Behalf Of The Original Owner, Speedmaster 'Ultraman', Ref: ST 145.012, Produced 16th May 1968. Bonhams, 15 Jun 2022, lot 13. bought in (did not sell). TheBasis.Art, TB-2026-543144.

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Omega. A Rare And Unusual Stainless Steel Manual Wind Chronograph Bracelet Watch Offered On Behalf Of The Original Owner, Speedmaster 'Ultraman', Ref: ST 145.012, Produced 16th May 1968. Bonhams, 15 Jun 2022, lot 13. bought in (did not sell). TheBasis.Art, TB-2026-543144.

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From the same sale Fine Watches · Jun 2022

Lot	Artist	Estimate	Result
Autavia, Ref: 2446, Circa 1962	Heuer. A Stainless Steel Manual Wind Calendar Chronograph Wristwatch	£25,000–£35,000
Seamaster , Ref: ST 166.093, Circa 1975	Omega. An Extremely Rare Stainless Steel Automatic Calendar Bracelet Watch	£15,000–£20,000
Ref: 1543, Circa 1945	Patek Philippe. An 18k Gold Manual Wind Wristwatch	£25,000–£35,000
Datejust Pearlmaster, Ref: 80318, Purchased December 2000	Rolex. A Lady's Three Colour 18k Gold Diamond Set Automatic Calendar Bracelet Watch	£10,000–£15,000
Tortue, Circa 1915	Cartier. A Lady's Rare And Early Platinum And Gold Manual Wind Wristwatch	£8,000–£12,000
Single Red Submariner, Ref: 1680, Circa 1972	Omega. A Stainless Steel Automatic Calendar Bracelet Watch	£12,000–£18,000	upcoming

Comparable results nearest sold works, same medium & price band

Artist	Lot	Result USD, incl. premium	Sale
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	Explorer II, Ref: 1655, Circa 1972	$28,604	Bonhams, Jun 2021
Omega. A Rare Stainless Steel Manual Wind Chronograph Wristwatch	Speedmaster, Ref: 2998-2, c. 1960s		Bonhams, Jun 2026
Omega. A Rare Stainless Steel Manual Wind Chronograph Wristwatch	Cosmograph Daytona, Ref: 6239/6242, Circa 1969		Bonhams, Jun 2022
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	Explorer II, Ref: 1655, Circa 1975		Bonhams, Sep 2022
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	GMT Master 'Pepsi', Ref: 6542, Circa 1959		Bonhams, Dec 2021
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	GMT-Master II 'Pepsi', Ref: 126710BLR0, Purchased 12th Octob		Bonhams, Dec 2024
Rolex. A Stainless Steel Automatic Calendar Bracelet Watch With Dual Time Zone	GMT-Master, Ref: 6542, Purchased 23rd February, 1960		Bonhams, Oct 2024
Omega. A Rare Stainless Steel Manual Wind Chronograph Wristwatch	Anti-Magnetic Chronograph, Ref: 2508, c. 1937		Bonhams, Apr 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.