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

Omega Speedmaster - First Omega in Space - FOIS - 310.30.40.50.06.001 ( new )
This Omega Speedmaster 3861 Anniversary Series is a brand new First Omega in Space (FOIS) model, reference # 310.30.40.50.06.001, featuring a stainless steel case and Omega 3861 calibre.
- Condition: Brand New / Complete Set
- Case Size: 39.7mm
- Material: Stainless Steel
- Calibre: Omega 3861
![[WTS] White Omega Speedmaster Pro](https://preview.redd.it/8vigxlnkkc6f1.jpg?width=640&crop=smart&auto=webp&s=50e9a6ec643c18bfa7d032ecdc85d3cb870fd824)
White Omega Speedmaster Pro
A white dial Omega Speedmaster Pro comes with a box and card, and has a warranty dated July 2024.
- Box: yes, included
- Card: yes, included
- Warranty: until July 2026
![[WTS] OMEGA Speedmaster Dark Side of the Moon “Black Black”- DSOTM - 311.92.44.51.01.005](https://preview.redd.it/jpel7nirib6f1.jpg?width=640&crop=smart&auto=webp&s=d2afe3ae6f1cc6e1d4ac2e36a6c51af04fdb689e)
OMEGA Speedmaster Dark Side of the Moon “Black Black”- DSOTM - 311.92.44.51.01.005
This is a rare Omega Speedmaster Dark Side of the Moon "Black Black" watch, one of only 56 pieces made in this colorway.
- Condition: Excellent condition, very little signs of wear
- Case Diameter: 44mm
- Band Material:
- Movement Type:
![[WTS] Omega Speedmaster Professional Rubber strap with fold over clasp $500](https://external-preview.redd.it/eJ5kngWdNFHUme9RGEt4LJw0JOBzXsn9IA8DRREab4E.jpeg?auto=webp&s=3da254ad4064ab936f192cbc12f58761d722f866)
Omega Speedmaster Professional Rubber strap with fold over clasp $500
A rubber strap for an Omega Speedmaster Professional, purchased from Omega and used for about two months.
- Condition: Pre-owned with minor damage
- Material: rubber
- Strap Condition: pre-owned
- Damage Description: scratch on the clasp
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Omega Speedmaster Broad Arrow $3900
- Key1: $3900
![[WTS] Omega Speedmaster Racing White - Bracelet & Leather - Mint 329.30.44.51.04.001](https://preview.redd.it/hen09c0nu66f1.jpg?width=640&crop=smart&auto=webp&s=31c502c750cc8869333e96e41a0c099f164392ed)
Omega Speedmaster Racing White - Bracelet & Leather - Mint 329.30.44.51.04.001
This Omega Speedmaster Racing features a stainless steel case and bracelet with a black ceramic bezel ring and white dial with distinctive racing style minute-track.
- Condition: Excellent
- Case size: 44.25mm diameter
- Material: Stainless Steel

1992 Omega Speedmaster Ref: 3590.50 Yellow Patina
A pre-owned 1992 Omega Speedmaster Ref: 3590.50 with a yellow patina on the dial and hands, featuring a 42mm case, black bezel, and 1479 Omega bracelet.
- Condition: Excellent
- Case Size: 42mm diameter
- Bracelet Links: 22
- End Links: 812
![[WTS] Omega Speedmaster Tropical Dial 1965 “Ed White” Cal. 321 (Serviced) Reduced 💸](https://external-preview.redd.it/pXwtWu_1QaVu1adbsvd30LlUZsSBNC0BdRS43SD_qDk.jpg?auto=webp&s=a4f41231eaad56cdd24d70e96b52f3eb99dc6d4a)
Omega Speedmaster Tropical Dial 1965 “Ed White” Cal. 321 (Serviced) Reduced 💸
This Omega Speedmaster Ed White showcases the charm and character that define vintage watches, featuring a rich tropical brown dial and iconic design.
- Condition: Good, with honest wear reflective of its history
- Size: 39.7mm diameter
- Year: 1965
- Movement: Caliber 321 (serviced November 2024)

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( excellent )
This Omega Speedmaster Moonwatch Professional features a white dial and is housed in a 42mm stainless steel case. It comes with all original boxes, papers, booklets, and an Omega Warranty Card dated September 2024.
- Condition: Excellent Condition
- Case Size: 42mm
- Material: Stainless Steel
- Movement: Omega Master Chronometer Movement