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 reduced

Omega speedmaster reduced

Omega - 3510.50 $2,500
Up for sale is my Omega Speedmaster Reduced from the mid 1990s, which comes in a stainless steel case with a black dial and automatic chronograph.

  • Condition: Great condition for its age, with patina
  • Case size: 39mm
  • Bracelet type: Stainless steel and Uncle's flat link bracelet
  • Bracelet material: Stainless steel
Posted at
Apr 24, 2026, 10:59 PM
Active
[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 馃敟$10,000馃敟

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 馃敟$10,000馃敟

OMEGA - 311.92.44.30.01.001 $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 watch commemorates the 50th anniversary of the Apollo 8 mission, featuring a black ceramic case and a skeletonized dial with a lunar surface design.

  • Condition: UNWORN
  • Case material: black ceramic
  • Case diameter: 44.25mm
Posted at
Apr 24, 2026, 6:21 PM
Active
[WTS] BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,799

BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,799

Omega - 310.30.42.50.01.001 $6,799
The Omega Speedmaster Moonwatch Professional features a 42mm stainless steel case with a hesalite front and solid case back, powered by the updated caliber 3861 movement.

  • Condition: Brand new in box with warranty
  • Movement: Hand wound Cal 3861
  • Power reserve: 50 hours
  • Case size: 42mm diameter
Posted at
Apr 24, 2026, 5:59 PM
Active
[WTS] Omega Speedmaster Racing with a box 40mm

Omega Speedmaster Racing with a box 40mm

Omega - Speedmaster Racing $6,500
  • Box: included
Posted at
Apr 24, 2026, 4:56 PM
Active
[WTS] Omega OEM Integrated Speedmaster Rubber Straps - One with OEM Clasp - One Without Clasp (Backordered thru Omega)

Omega OEM Integrated Speedmaster Rubber Straps - One with OEM Clasp - One Without Clasp (Backordered thru Omega)

Omega - 032Z017245 $575
Additional details for Omega Speedmaster Professional rubber straps with curved ends and stainless steel deployant clasp. Designed to fit 20mm lugs.

  • Condition: Very Good
  • Material: rubber
  • Clasp Type: stainless steel deployant clasp
  • Lugs Size: 20mm
Posted at
Apr 24, 2026, 3:27 PM
Active
[WTS] 2026 LNIB OMEGA Speedmaster Moonwatch Professional "Reverse Panda" 310.30.42.50.01.004 - Full Set

2026 LNIB OMEGA Speedmaster Moonwatch Professional "Reverse Panda" 310.30.42.50.01.004 - Full Set

Omega - 310.30.42.50.01.004 $10,350
The Omega Speedmaster Moonwatch Professional 'Reverse Panda' is a new addition to the permanent Moonwatch collection, featuring a glossy polished black lacquered step dial with white varnished and lacquered sub-dials.

  • Condition: Pristine pre-owned condition, virtually like new
  • Case size: 42mm diameter
  • Movement: Manual-Winding Co-Axial Master Chronometer Calibre 3861 (METAS certified)
  • Power reserve: ~50 hours
Posted at
Apr 24, 2026, 2:47 PM
Active
[WTS] Omega Speedmaster Day Date 3523.80

Omega Speedmaster Day Date 3523.80

Omega - 3523.80 $2,350
This Omega Speedmaster Day Date features a beautiful blue dial and is in excellent condition with minimal signs of wear.

  • Condition: Excellent
  • Payment Methods Accepted: pretty much every payment method, including crypto
  • Meetup Location: southwest FL
  • Available Trades: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Apr 24, 2026, 1:25 PM
Active
[WTS] Omega Speedmaster Racing 326.30.40.50.03.001

Omega Speedmaster Racing 326.30.40.50.03.001

Omega - 326.30.40.50.03.001 $2,450
For sale is an Omega Speedmaster Racing, in great condition with some light wear around the watch.

  • Condition: great condition with some light wear
  • Payment Methods Accepted: pretty much every payment method including crypto
  • Local Meet Available: yes
Posted at
Apr 24, 2026, 1:20 PM
Active
[WTS] Omega Speedmaster Date 38.5mm 3513.54

Omega Speedmaster Date 38.5mm 3513.54

Omega - 3513.54 $1,575
For sale is an Omega Speedmaster Date 38.5mm reference number 3513.54, in good condition, from 1998.

  • Condition: good with some wear and small marks
  • Year of production: 1998
  • Case size: 38.5mm
Posted at
Apr 24, 2026, 1:15 PM
Active