Omega Speedmaster Speedmaster Professional Missions Gemini XII

Reference 3597.10.00

Omega Speedmaster Professional Missions Gemini XII

About this watch

The Omega Speedmaster Professional Missions Gemini XII stands out as a beacon of excellence in the world of luxury watches. This limited edition timepiece, produced between 1997 and 1998, is a tribute to NASA's Gemini program and features a stunning design that whispers elegance without being loud. The sleek stainless steel case, black dial with stick indexes and dot markers, and tachymeter bezel all contribute to its timeless appeal. Powered by the Omega caliber 1861 movement, a hand-wound chronograph known for its reliability and precision, this watch is suitable for both everyday wear and special occasions. With only 200 units made, owning an Omega Speedmaster Gemini XII is like holding a piece of horological history. Its historical significance adds a layer of intrigue that few other watches can match, making it a must-have for collectors, space enthusiasts, and those who appreciate the finer things in life.
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Key Features

  • Limited edition of 200 units
  • Omega caliber 1861 hand-wound chronograph movement
  • 42mm diameter stainless steel case
  • Black dial with stick indexes and dot markers
  • Tachymeter bezel for measuring speed
  • Water resistance of 50 meters
  • 20mm lug width for versatility

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Missions Gemini XII
Reference
3597.10.00
Movement
1861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Racing Chronograph 44.25mm – BOX & PAPERS – 329.30.44.51.04.001 Active Warranty & Dec 2025 Service Records

Omega Speedmaster Racing Chronograph 44.25mm – BOX & PAPERS – 329.30.44.51.04.001 Active Warranty & Dec 2025 Service Records

Omega - 329.30.44.51.04.001 · $7,500
This Omega Speedmaster Racing Chronograph is a 44.25mm timepiece with additional details available upon request.

  • Case Size: 44.25mm diameter
  • Warranty: Active Warranty
Posted at
Apr 26, 2026, 5:22 PM
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[WTS] 2024 Omega Speedmaster Moonwatch – Full Set – $4850 Shipped

2024 Omega Speedmaster Moonwatch – Full Set – $4850 Shipped

Omega - 310.30.42.50.01.001 · $4,850
This is a 2024 Omega Speedmaster Moonwatch, an iconic timepiece in its latest Hesalite configuration.

  • Condition: Excellent with minor hairline scratches on the clasp
  • Case size: 42mm
  • Crystal type: Hesalite
  • Movement type: Manual-wind Co-Axial Master Chronometer
Posted at
Apr 26, 2026, 1:05 PM
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[WTS] Omega Speedmaster Day-Date "Triple Date" - Blue Dial - Ref. 3523.80.00 (Full Set)

Omega Speedmaster Day-Date "Triple Date" - Blue Dial - Ref. 3523.80.00 (Full Set)

Omega - 3523.80.00 · $2,800
The Omega Speedmaster Day-Date features a sunburst blue dial and is powered by the Omega Calibre 1151 movement, offering a chronograph, day-date-month apertures, and a 24-hour/day-night indicator in a classic 39mm case.

  • Condition: Excellent condition
  • Movement: Omega Calibre 1151 (Automatic Chronograph)
  • Power reserve: 44 Hours
  • Case diameter: 39mm
Posted at
Apr 26, 2026, 12:08 PM
Active
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[WTS] Omega Speedmaster Schumacher’s 2001 F1 World Championship Limited Edition 3519.50.00 | Great Condition (Serviced) | $2750

Omega Speedmaster Schumacher’s 2001 F1 World Championship Limited Edition 3519.50.00 | Great Condition (Serviced) | $2750

Omega - 3519.50.00 · $2,750
The Omega Speedmaster Schumacher Limited Edition is a unique piece that captures the moment of Michael Schumacher's 2001 F1 World Championship, featuring a black carbon-fiber checkered dial and engraved caseback with Schumacher's signature. This 39mm stainless steel watch has an automatic Caliber 1152 movement with chronograph functionality and 44 hours power reserve. It is a proper collectible from Omega's early 2000s era.

  • Condition: Great Condition (Serviced)
  • Case Size: 39mm diameter
  • Bracelet Length: up to 19cm (7.5 inches)
  • Water Resistance: not specified
Posted at
Apr 25, 2026, 11:26 PM
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[WTS] Omega Speedmaster 50th anniversary (2025) - Full Set - $17,000

Omega Speedmaster 50th anniversary (2025) - Full Set - $17,000

Omega - 50th anniversary (2025) · $17,000
This Omega Speedmaster 50th anniversary watch is in excellent condition and has only been worn on the steel OEM bracelet. It comes with a full set, including box, booklets, warranty cards, spare links, and an additional Omega NATO strap.

  • Condition: Excellent
  • Bracelet condition: Steel OEM bracelet in excellent condition
  • Strap options: Omega NATO strap in grey and blue textile strap
Posted at
Apr 25, 2026, 10:12 PM
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[WTS] Omega Speedmaster Professional “Sapphire Sandwich” – Ref. 310.30.42.50.01.002 $6800 plus label

Omega Speedmaster Professional “Sapphire Sandwich” – Ref. 310.30.42.50.01.002 $6800 plus label

Omega - 310.30.42.50.01.002 · $6,800
This Omega Speedmaster Professional features a 'Sapphire Sandwich' design and comes with its box, warranty cards, and hang tag.

  • Condition: Pre-owned, noticeable wear on the polished case sides
  • Bracelet condition: light wear overall
Posted at
Apr 25, 2026, 9:38 PM
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[WTS] Omega Speedmaster Dark Side Of The Moon (DSOM) - ref. 310.92.44.50.01.001 $12,000 plus shipping label

Omega Speedmaster Dark Side Of The Moon (DSOM) - ref. 310.92.44.50.01.001 $12,000 plus shipping label

Omega - 310.92.44.50.01.001 · $12,000
This Omega Speedmaster Dark Side Of The Moon (DSOM) is in excellent condition, with minimal wear. It comes with a full set of accessories and includes a warranty card.

  • Condition: Like new
  • Box and papers: true
Posted at
Apr 25, 2026, 9:32 PM
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[WTS] Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Bead Blasted Case Ref 145.0044 - German Market Exclusive

Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Bead Blasted Case Ref 145.0044 - German Market Exclusive

Omega - 145.0044 · $2,795
A unique vintage Omega Speedmaster Teutonic ref 145.0040 designed for the German market in the early 1980s, featuring a bead-blasted case and gray dial.

  • Condition: Pre-owned, some wear
  • Case size: 42mm diameter
  • Bracelet length: up to 7.25 inches
  • Movement type: Manual wound Omega cal 861
Posted at
Apr 25, 2026, 9:21 PM
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2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

Omega - 310.30.42.50.01.002 · $6,195
This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

  • Condition: Minty fresh
  • Case size: 42mm
  • Year: 2022
  • Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Posted at
Apr 7, 2025, 2:59 PM
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