Omega Speedmaster Speedmaster Professional Missions Gemini XII

Reference 3597.10.00

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 3861 'Hesalite' edition Warranty dated 2020 $3900

Omega Speedmaster 3861 'Hesalite' edition Warranty dated 2020 $3900

Omega - 3861 · $3,900
Warranty dated 2020.

Posted at
Jan 27, 2026, 11:14 AM
Active
OMEGA SPEEDMASTER PROFESSIONAL MOONWATCH 35735000 also known as Sapphire Sandwich. Warranty card dated 2011. Comes with all accessories, box and papers as bought new. Can provide references to serious buyer. [WTS] $5750

OMEGA SPEEDMASTER PROFESSIONAL MOONWATCH 35735000 also known as Sapphire Sandwich. Warranty card dated 2011. Comes with all accessories, box and papers as bought new. Can provide references to serious buyer. $5750

OMEGA - 35735000 · $5,750
This Omega Speedmaster Professional Moonwatch, also known as the Sapphire Sandwich, is a pre-owned timepiece with a warranty card dated 2011. It comes with all original accessories, box, and papers.

  • Condition: New with accessories and box
  • Year: 2011
Posted at
Jan 27, 2026, 3:35 AM
Active
[WTS] Omega Speedmaster 3520.53 Box, Manual, Card - $2,850

Omega Speedmaster 3520.53 Box, Manual, Card - $2,850

Omega - 3520.53 · $2,850
This is a Omega Speedmaster 3520.53 Full Kit in good condition, featuring an automatic movement and a steel case on an original Omega Steel bracelet.

  • Condition: Good condition with usage marks and minimal oxidation on subdials
  • Case size: 39mm
  • Bracelet size range: 7.25-7.5 inch wrists
  • Movement type: Automatic
Posted at
Jan 26, 2026, 9:09 PM
Active
[WTS] Omega Speedmaster Broadarrow. $3450 only !! Very Accurate...

Omega Speedmaster Broadarrow. $3450 only !! Very Accurate...

The Omega Speedmaster Broadarrow is a high-end watch for sale, described as very accurate.

  • Shipping: Fedex with insurance
  • Location: NJ USA
Posted at
Jan 26, 2026, 7:41 PM
Active
[WTS] Omega Speedmaster Legend Schumacher ref 3506.61 like new *PRICE DROP*

Omega Speedmaster Legend Schumacher ref 3506.61 like new *PRICE DROP*

Omega - 3506.61 · $4,350
This Omega Speedmaster Legend Schumacher edition features a striking red dial, engraved case back, and stainless steel bracelet with full links.

  • Condition: Like new, unworn
  • Case materials: stainless steel
  • Bracelet size: full links attached
Posted at
Jan 26, 2026, 7:01 PM
Active
[WTS] Omega Speedmaster Reduced ref 3222.80 like new *PRICE DROP*

Omega Speedmaster Reduced ref 3222.80 like new *PRICE DROP*

Omega - 3222.80 · $3,350
This Omega Speedmaster Day-Date ref 3222.80 features a vibrant blue dial, stainless steel bracelet, day, date, month, chronograph, and 24-hour indicators.

  • Condition: like new
  • Case material: stainless steel
  • Bracelet type: stainless steel with full links
Posted at
Jan 26, 2026, 6:53 PM
Active
[WTS] Omega Speedmaster Racing Cart - 39mm

Omega Speedmaster Racing Cart - 39mm

Omega - 3510.80 · $4,050
This Omega Speedmaster Racing Cart Edition features a 39mm case and comes with the full set, including original box, card, authentication papers, and extra links.

  • Condition: Mint
  • Case size: 39mm
  • Movement serviced: true
Posted at
Jan 26, 2026, 4:26 PM
Active