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] 1997 Omega Speedmaster 'Gemini V' LE of 150 PCS (Ref. 345.0022)](https://preview.redd.it/m6zvayrnny7f1.jpeg?auto=webp&s=e5b77441fb85886a02e37306dc91d9f355e4fbf4)
1997 Omega Speedmaster 'Gemini V' LE of 150 PCS (Ref. 345.0022)
The watch commemorates the Gemini V mission, featuring the NASA mission patch in the 9 o'clock sub-dial and is part of a limited release of 150 models. The case is 42mm and features an Omega 1499 bracelet with 842 end pieces.
- Condition: Excellent/like new
- Case size: 42mm
- Bracelet type: Omega 1499 with 842 end pieces
- Box and papers included: Original inner/outer boxes and booklets
![[WTS] Omega Speedmaster Reduced Date Annual Calendar Chronograph Silver Dial (Papers/Mint)](https://external-preview.redd.it/AwrFlgEQUkUlb4xMWQac1IgDEH634QLcqwJV2ZVT2Vc.jpg?auto=webp&s=63bf9154c7657ea21d57d16f79a27a4e348c3c74)
Omega Speedmaster Reduced Date Annual Calendar Chronograph Silver Dial (Papers/Mint)
The Omega Speedmaster Reduced Triple Calendar features a compact stainless steel case, silver dial, and automatic movement with chronograph, day, date, and month functions.
- Condition: mint, minimal signs of wear
- Case size: 39mm diameter
- Bracelet size: fits wrists up to 7.5” (19.5 cm)
- Movement: automatic
![[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 Complete Set 2021](https://external-preview.redd.it/q9LFvrrMEuEyA5rEz9e0ilwHs9iTfswM0zN5OIeJOb8.jpeg?auto=webp&s=b9b725f2ecede934931cac14aa32570fca8358f4)
Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 Complete Set 2021
This Omega Speedmaster Moonwatch - Dark Side of the Moon - Apollo 8 is a 2021 model featuring a unique design.
- Condition: Very Good
- Year: 2021
- Warranty: Factory warranty
- Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Operating Instructions Manual, Omega Watch Cloth
![[WTS] Omega Speedmaster 3511.50](https://external-preview.redd.it/cMB_j5InktFP7qdOZV-r0dWTOhKeggFBxwlIscs23Aw.jpeg?auto=webp&s=23c7871de4544e7b9fab4709e91ee4b4e3c88bc9)
Omega Speedmaster 3511.50
Up for sale is my Omega Speedmaster date ref 3511.50, a Japan exclusive model with excellent timekeeping and highly reliable ETA7750 movement.
- Condition: Great condition
- Movement: ETA7750
- Bracelet size compatibility: up to 7 inches
![[WTS] Open Card Omega Speedmaster Dark Side Of The Moon 311.92.44.30.01.001 - Mint Condition With Box and Papers](https://preview.redd.it/m7cj68kupk7f1.jpeg?auto=webp&s=c7b8e58dacab7f08b6a82d716534c514eb73661b)
Open Card Omega Speedmaster Dark Side Of The Moon 311.92.44.30.01.001 - Mint Condition With Box and Papers
This Omega Speedmaster Dark Side Of The Moon is a highly sought-after model, known for its unique design and technical capabilities.
- Condition: Mint condition
- Box: Yes, comes with box
- Papers: Yes, comes with papers
![[WTS] Omega Speedmaster Chronoscope Co-Axial 43mm 329.30.43.51.02.001](https://external-preview.redd.it/DKcSLDkuCFoiIoa6Yt014FxbHQuc6slDQT9g95XHZDU.jpeg?auto=webp&s=9937177aac8110a57acf2e914e918b7da496662f)
Omega Speedmaster Chronoscope Co-Axial 43mm 329.30.43.51.02.001
This Omega Speedmaster Chronoscope features a unique design with three timing scales, including a tachymeter scale, pulsometer scale, and telemeter scale. The watch comes with its original packaging and accessories.
- Condition: Excellent
- Case Size: 43mm
- Box And Papers: true

Pre-Owned Omega Speedmaster Pilot 332.10.41.51.01.002
This pre-owned Omega Speedmaster Pilot is a stainless steel watch with a black dial and automatic movement. It has a 41mm case size and water resistance of up to 100 meters.
- Condition: 96% condition with faint marks on the sides and back of the case, 93% condition for the bracelet, and 97% condition for an OEM strap
- Material: Stainless Steel
- Dial color: Black
- Case size: 41mm diameter
![[WTS] Omega Speedmaster Hesalite 3861 with quick adjust bracelet](https://external-preview.redd.it/Dm4Qol7OuXJwyI2YnfqLXXDc2Sn8F66McyAdd3bvEeo.jpeg?auto=webp&s=d7863c961700a846914bdf9dd3f206d1ccc7493b)
Omega Speedmaster Hesalite 3861 with quick adjust bracelet
This Omega Speedmaster Hesalite 3861 is in excellent condition, featuring a quick adjust bracelet and minimal wear. It comes with the full kit, including warranty cards, spare links, paperwork, and an original sales receipt.
- Condition: Excellent
- Crystal type: Hesalite
- Bracelet type: Quick adjust
- Movement accuracy: +0 to +5 seconds per day
Omega Speedmaster. Tokyo Edition. Rare Bird. Omega Serviced 2024. Clean.
This Omega Speedmaster Tokyo Edition is a rare and highly sought-after timepiece, featuring a clean condition and recent service from Omega in 2024.
- Condition: Clean
- Case size: 42mm diameter