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 Racing – Complete Set
This Omega Speedmaster Racing Master Chronometer features a 44.25mm stainless steel case on a brown leather strap with a black ceramic bezel ring and is powered by the OMEGA Co-Axial Master Chronometer 9900 movement.
- Condition: Excellent, Mint condition with few signs of wear
- Case material: Stainless Steel
- Diameter: 44.25 mm
- Movement type: Self-winding
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Omega Speedmaster Professional Sapphire 1863 311.30.42.30.01.006 - $4,195 💵
A Omega Speedmaster Moonwatch Professional watch functions perfectly mechanically and is a great everyday option.
- Condition: amazing condition
- Bracelet size: fits a 6.5 inch wrist
![[WTS] Omega Speedmaster Professional 3590.50 - $3650 Shipped ✈️](https://preview.redd.it/ziu3db8qnmxe1.jpg?width=640&crop=smart&auto=webp&s=81a03481a2e98469ebbd31e164780557afc98675)
Omega Speedmaster Professional 3590.50 - $3650 Shipped ✈️
a beautiful Omega Speedmaster Professional Moonwatch with Tritium dial and Calibre 861 movement.
- Condition: good working order, with some cosmetic wear as seen in photos
- Wrist size: 7.5inch
![[WTS] 2000 Omega Speedmaster 'Reduced' Ref. 3510.50 with Box & Papers](https://preview.redd.it/gesor8xxdmxe1.jpeg?auto=webp&s=acafe7424b4ed7b8cb41d0b05e93f6b2d63ace9c)
2000 Omega Speedmaster 'Reduced' Ref. 3510.50 with Box & Papers
The Omega Speedmaster Reduced Automatic is a pre-owned watch in excellent condition, measuring 39mm and featuring a Luminova dial.
- Condition: Excellent (very little to no signs of wear)
- Movement: Automatic
- Case Width: 39mm
- Straps Length: 7.25 inches
![[WTS] 2013 Omega Speedmaster 'Reduced' Ref. 3539.50 with Papers | Serviced 2025](https://preview.redd.it/sknu9xh5dmxe1.jpeg?auto=webp&s=c60f065f8e37ec050491edc1eefe1f7b66d2cfbe)
2013 Omega Speedmaster 'Reduced' Ref. 3539.50 with Papers | Serviced 2025
This Omega Speedmaster Reduced Automatic features a 39mm case and is in excellent pre-owned condition, with a scratch resistant sapphire crystal and upgraded fold over clasp.
- Condition: Excellent (little to no signs of wear)
- Movement: Automatic
- Case width: 39mm diameter
- Straps length: 7.50 inches (strap)
JAN 2025 Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001 Speedy
This Omega Speedmaster racing watch is a 2025 model with a 44.25mm case, featuring a steel chronograph function.
- Condition: Mint and full set
- Case diameter: 44.25mm
- Serial number: blurred for security/privacy reasons
![[WTS] OMEGA Speedmaster '57 40.5mm Blue Dial 332.10.41.51.03.001 Complete Set 2023](https://external-preview.redd.it/Mh5OTG2XMu9BRZK60vfJ05hYCGVBEHSeUm750RwOIig.jpg?auto=webp&s=24f60256885ac3977cbf1ad9325c336b94ea2fb0)
OMEGA Speedmaster '57 40.5mm Blue Dial 332.10.41.51.03.001 Complete Set 2023
The OMEGA Speedmaster '57 features a stainless steel case and a blue dial, inspired by the 1957 original. It is a modern take on a classic design.
- Condition: Excellent condition with little to no signs of wear.
- Year Of Production: 2023
- Case Size: 40.5mm
- Set Contents: inner box,outer box,warranty card,pictogram,master chronometer,card sleeve,instruction booklet,hang tag
![[WTS] (Omega Speedmaster Professional Moonwatch)](https://preview.redd.it/2w3xe2lhalxe1.jpeg?auto=webp&s=a3414be0a7cd63400507c7ec8a837ec686d02788)
(Omega Speedmaster Professional Moonwatch)
This Omega Speedmaster Professional Moonwatch is a beautifully maintained watch with near perfect condition.
- Condition: near perfect
- Buckle type: OEM deployant

Omega Speedmaster Silver Snoopy Award 50th - 31032425002001 UNWORN
This Omega Speedmaster 'Silver Snoopy Award' 50th Anniversary watch was originally purchased in December 2022 and remains in its original packaging with outer/inner boxes, warranty booklet, etc. It's an iconic watch reportedly at the end of its production run, with a potential price increase expected soon.
- Condition: UNWORN, as-new condition
- Box set included: true
- Outer/inner omega boxes included: true
- Warranty booklet included: true