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.
Buy Now on Jomashop
This is an affiliate link

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 Triple Date 3523.80 – Blue Dial – Automatic Triple Calendar Chronograph ( Serviced ) Price 2200$

Omega Speedmaster Triple Date 3523.80 – Blue Dial – Automatic Triple Calendar Chronograph ( Serviced ) Price 2200$

Omega - 3523.80 · $2,200
The Omega Speedmaster Triple Date features a metallic blue dial, a three-day calendar layout, and a moon phase display, combining sporty style with elegant design.

  • Condition: Excellent vintage condition with minor signs of wear befitting its age
  • Case size: 39mm diameter
  • Movement: Omega Cal. 1151 Automatic Chronograph
  • Functions: Chronograph, Date, Month, Moon Phase
Posted at
May 10, 2026, 2:11 AM
Active
[WTS] 2026 New White Omega Speedmaster

2026 New White Omega Speedmaster

  • Photo link: https://imgur.com/a/wZkrrX0
Posted at
May 9, 2026, 6:33 PM
Active
[WTS] Omega Speedmaster Mark II. 327.10.43.50.01.001.

Omega Speedmaster Mark II. 327.10.43.50.01.001.

A Omega Speedmaster Mark II in very good condition, suitable for large wrists.

  • Condition: Very good condition
  • Size: 40mm diameter
  • Wrist size suitability: Large wrist
Posted at
May 9, 2026, 4:39 PM
Active
[WTS] Omega Speedmaster. 39mm. Special Dial.

Omega Speedmaster. 39mm. Special Dial.

Omega - Speedmaster · $2,200
A 39mm Omega Speedmaster with a special dial is being sold. The watch features an automatic movement and has been listed for sale.

  • Diameter: 39mm
  • Movement type: automatic
Posted at
May 9, 2026, 4:28 PM
Active
[WTS] Omega Speedmaster Broadarrow. Strong Lume.

Omega Speedmaster Broadarrow. Strong Lume.

This Omega Speedmaster Broadarrow features strong lume and runs well.

  • Condition: Runs well
  • Shipping: Fedex with insurance
  • Location: NJ USA
  • References: 800+ references
Posted at
May 9, 2026, 3:40 PM
Active
[WTS] Omega Speedmaster Tokyo Gold Green 522.20.42.30.06.001

Omega Speedmaster Tokyo Gold Green 522.20.42.30.06.001

Omega Speedmaster Tokyo Gold Green in mint condition, complete with original boxes and papers.

  • Condition: Mint condition with minor wear on the bracelet
  • Bracelet state: has all stickers
  • Extra strap included: yes
  • Strap type: crocodile leather
Posted at
May 9, 2026, 1:59 PM
Active
[WTS] Omega Speedmaster Reduced Sapphire Crystal 3539.50 39mm $2,900

Omega Speedmaster Reduced Sapphire Crystal 3539.50 39mm $2,900

Omega - 3539.50 · $2,900
This Omega Speedmaster Reduced is a 39mm watch recently serviced by a professional watchmaker and features a sapphire crystal.

  • Condition: Used, with minor cosmetic damage (nicks around the bezel)
  • Case Size: 39mm
  • Bracelet Length: 18.5cm
Posted at
May 9, 2026, 1:58 PM
Active
[WTS] 2005 Omega Speedmaster Professional "Sapphire Sandwich" Ref. 3573.50 Watch + Card and Tag - $4,800

2005 Omega Speedmaster Professional "Sapphire Sandwich" Ref. 3573.50 Watch + Card and Tag - $4,800

Omega - 3573.50 · $4,800
This Omega Speedmaster Professional Moonwatch is a stainless steel watch with a sapphire crystal and an Omega 1863 movement, featuring a 42mm diameter case.

  • Condition: Good
  • Case material: Stainless steel
  • Crystal material: Sapphire
  • Movement: Omega 1863
Posted at
May 9, 2026, 12:22 PM
Active