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.

Buy Now on Jomashop

This is an affiliate link

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

Current Listings

2023 Omega Speedmaster Moonphase 44.25mm 304.33.44.52.03.001 Blue Dial - Box and Papers

Omega - 304.33.44.52.03.001 · $7,199

This 2023 Omega Speedmaster Moonphase features a 44.25mm blue dial and is in good condition with light signs of wear on the case and clasp.

Condition: Good preowned condition
Case Size: 44.25mm diameter
Warranty: 5 year warranty remaining

Posted at

Jan 14, 2026, 10:53 AM

Active

View listing on r/WatchExchange

1989 Omega Speedmaster Automatic 175.0032. Vintage Speedy | Runs well

Omega - 175.0032 · $2,700

A vintage Omega Speedmaster Automatic from 1989, featuring incredible tritium lume patina and a few variations in caseback and bracelet.

Condition: Excellent, with honest but light wear
Caseback variations: multiple caseback designs available for this reference
Bracelet variations: multiple bracelet options available for this reference

Posted at

Jan 14, 2026, 9:56 AM

Active

View listing on r/WatchExchange

Omega Speedmaster First Omega In Space FOIS 40mm 310.30.40.50.06.001 | 8/2025 Full Set

Omega - 310.30.40.50.06.001 · $7,250

This is a 40mm Omega Speedmaster First Omega In Space (FOIS) with a Master Chronometer certification.

Condition: Pre-Owned, Great Condition
Bezel condition: Clean
Crystal condition: Clean
Bracelet length: 23 Links

Posted at

Jan 13, 2026, 10:27 PM

Active

View listing on r/WatchExchange

Omega Speedmaster 38 324.30.38.50.01.001 | 2024 Full Set w/ Extra OEM Strap

Omega - 324.30.38.50.01.001 · $3,999

A 2024 Omega Speedmaster 38 with a slight scratching on the anti-reflective coating, available for sale in excellent condition with extra OEM strap and various other accessories.

Condition: Pre-Owned | Slight scratching on AR Coating
Water resistance: 350 AMP

Posted at

Jan 13, 2026, 10:23 PM

Active

View listing on r/WatchExchange

2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set + Extra Uncle Bracelet – $6,950 Shipped

Omega - 310.30.40.50.06.001 · $6,950

A modern reissue of the Speedmaster worn by Wally Schirra during the Sigma 7 mission, featuring a slimmer 39.7mm case and vintage-inspired aesthetic.

Condition: Excellent
Case size: 39.7mm
Movement: Omega Caliber 3861, Manual-wind chronograph
Crystal: Sapphire

Posted at

Jan 13, 2026, 7:58 PM

Active

View listing on r/WatchExchange

20mm Omega Integrated Speedmaster Black Rubber Strap & Omega Clasp - (Backordered) 2. 20mm Omega SMP 300 Black Rubber Strap & Omega OEM Clasp

Omega - 032Z017245, 032CVZ015752 · $575

The seller is offering two Omega watch straps for sale: a black rubber strap with integrated Speedmaster design and an SMP 300 Black Rubber Strap. Both straps are OEM and come with their respective clasps.

Strap Type1: Integrated Speedmaster Rubber Strap
Strap Type2: SMP 300 Black Rubber Strap
Clasp Type1: Omega OEM Stainless Steel Deployant Clasp

Posted at

Jan 13, 2026, 5:42 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫

Omega - 145.022-69 · $14,995

The Omega Speedmaster Moonwatch 145.022-69 features a super tropical brown dial with heavy yellow patina, a deep blue bezel, and tritium that glows green under UV light.

Condition: Very rare and fully original, beautiful condition
Case size: 42mm
Year of production: 1969
Movement serviced: November 2025

Posted at

Jan 13, 2026, 5:18 PM

Active

View listing on r/WatchExchange