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

2002 Omega Speedmaster "Reduced" Ref. 3510.50 with Box & Papers
The Omega Speedmaster Reduced Automatic is a Luminova example in excellent pre-owned condition with a dial and hands in good condition, measuring 39mm in diameter.
- Condition: Excellent
- Case Width: 39mm
- Strap Length: 7.5 inches
- Movement: Automatic
Omega Speedmaster Dark Side of the Moon -311.92.44.51.01.003 - Ceramic - 44mm
The Omega Speedmaster 'Dark Side of the Moon' is a ceramic watch with a black dial, measuring 44mm in diameter. It features a co-axial chronograph movement and comes with an Omega box set, warranty card, and manual.
- Condition: Pre-Owned (Mint Grade)
- Case size: 44mm
- Bracelet type: Black Canvas with Tang Buckle
- Movement: Co-Axial Chronograph

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( excellent )
This Omega Speedmaster Moonwatch Professional features a 42mm stainless steel case, white dial, and sapphire crystal.
- Condition: Excellent condition
- Case size: 42mm diameter
- Movement type: Omega Master Chronometer Movement

Omega SPEEDMASTER SNOOPY EYES ON THE STARS LIMITED EDITION BOXES PAPERS
42mm Omega Speedmaster Professional Moonwatch Snoopy 'Eyes on the Stars' in Stainless Steel, with black dial and Hesalite glass.
- Condition: Excellent Condition
- Movement: 1861 Manual-Winding Movement
- Bracelet size: fits up to 7.5 inches wrist
- Box papers: includes Omega wooden box, manual/cards dated 01.2004

Omega Speedmaster 321 Ed White Full Box & Papers
A Stealth Omega Speedmaster 321 Ed White with complete set, including inner & outer box, cards, loupe, strap changing tool, springbars, nato bands, booklets, and more. Sparing use over the last year has resulted in minor cosmetic issues.
- Condition: Very clean and great condition with minor hairlines and a small nick on the bezel
- Year: 2021
- Condition of clasp/bracelet: hairlines
Omega Speedmaster Aventurine
The Omega Speedmaster Aventurine Blue Side of the Moon is a beautiful watch that appears to be well-maintained, coming complete with double box and booklets.
- Condition: Great shape with limited to no signs of wear on the case
Omega Snoopy Speedmaster 310.32.42.50.02.001
This Omega Silver Snoopy Speedmaster is a brand-new Ref 310.32.42.50.02.001, complete with accessories.
- Condition: Brand new
- Box: double box
- Accessories: includes loupe, special booklet, regular booklet, serial tag, 3 cards with warranty stamped and dated 2/26/2025
Omega Speedmaster Moonwatch Moonshine!
Omega Speedmaster Moonwatch Professional in Moonshine Gold, 42mm case size.
- Condition: Great condition with very light wear
- Case Size: 42 mm
- Box Contents: Big box, special booklet, regular booklet, full links, warranty card

Omega Speedmaster Moon Chrono 311.30.42.30.01.005, 42 mm, Hesalite, Complete 2021
This Omega Speedmaster Moon Chrono is a manual-winding chronograph movement with Rhodium-plated finish, featuring a black dial and 48 hours power reserve. It has a stainless steel case and bracelet with deployment buckle.
- Condition: Near mint condition
- Case diameter: 42 mm
- Between lugs: 20 mm
- Thickness: 13.8 mm