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 Aqua Terra 38mm Full Set

Omega Speedmaster Aqua Terra 38mm Full Set

Omega - Aqua Terra 38mm · $4,250
Beautiful Omega Aqua Terra 38mm up for sale. It has a protective film on the case and bracelet, adding scratch protection.

  • Condition: Good pre-owned condition
  • Bracelet length: 6.75in
  • Strap material: rubber
  • Box contents: Inner and Outter Box, cards, tag, OEM bracelet, another set of WatchShell film and tweezers
Posted at
Jan 19, 2026, 10:52 AM
Active
[WTS] Omega Speedmaster Automatic Schumacher Ref. 3810.61.41 - $2995

Omega Speedmaster Automatic Schumacher Ref. 3810.61.41 - $2995

Omega - 3810.61.41 · $2,995
The Omega Speedmaster Automatic Schumacher Ref. 3810.61.41 is a unique limited edition watch.

  • Schumacher edition: limited edition
Posted at
Jan 19, 2026, 9:40 AM
Active
[WTS][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,100
This Omega Speedmaster Broad Arrow features a white dial and 42mm case, coming in full set with watch, box, manuals, and triple cards.

  • Condition: Fantastic condition with minor hairlines on bracelet, case, and clasp
  • Case Diameter: 42mm
  • Year: 2006
Posted at
Jan 19, 2026, 8:51 AM
Active
[WTS] Omega Speedmaster ’57 Gold on Leather Strap 2025 MINT FULL 331.22.42.51.01.001

Omega Speedmaster ’57 Gold on Leather Strap 2025 MINT FULL 331.22.42.51.01.001

The Omega Speedmaster ’57 Gold on Leather Strap is a luxury watch for sale. The details of the watch are still coming, but it appears to be in mint condition.

  • Condition: MINT FULL
Posted at
Jan 18, 2026, 10:07 PM
Active
[WTS] Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set

Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set

This Omega Speedmaster Professional is a 'Sapphire Sandwich' model with a 42mm case, known as the Moonwatch.

  • Condition: Like New
  • Case size: 42mm
  • Service history: Unknown
Posted at
Jan 18, 2026, 6:07 PM
Active
[WTS] Omega Speedmaster Professional Link - $75

Omega Speedmaster Professional Link - $75

A replacement link set for the Omega Speedmaster Professional, sealed and unopened, received directly from Omega.

  • Material: genuine OEM
  • Status: sealed and unopened
  • Origin: received directly from Omega
Posted at
Jan 18, 2026, 5:12 PM
Active
[WTS] Omega Speedmaster Broadarrow. $3450 only !!

Omega Speedmaster Broadarrow. $3450 only !!

A Omega Speedmaster Broadarrow for sale, available with shipping from NJ USA.

  • Shipping Location: NJ USA
  • Shipping Method: Fedex with insurance
  • Shipping Global: yes, globally accepted
Posted at
Jan 18, 2026, 3:43 PM
Active
[WTS] 2025 OMEGA Speedmaster Moonwatch Pro White 310.30.42.50.04.001 Full Set

2025 OMEGA Speedmaster Moonwatch Pro White 310.30.42.50.04.001 Full Set

For sale is a classic Omega Speedmaster Moonwatch Pro with a white dial and a December 2025 date.

  • Condition: Very good condition, with a mark on the side of the case
  • Msrp: $9,100 + Tax
  • Shipping: Fully insured overnight via FedEx to the closest FedEx Office
Posted at
Jan 18, 2026, 3:12 PM
Active
[WTS] Omega Speedmaster Pilot (332.10.41.51.01.002) | 2025

Omega Speedmaster Pilot (332.10.41.51.01.002) | 2025

This Omega Speedmaster Pilot is a recently released version of the Speedmaster, featuring an automatic Caliber 9900 movement and a 40.85mm steel case.

  • Condition: Excellent, lightly worn
  • Case Size: 40.85 mm diameter
  • Bracelet Material: Steel
  • Crystal: Sapphire
Posted at
Jan 18, 2026, 3:11 PM
Active