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

Current Listings

Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050

This Omega Speedmaster Professional Moonwatch is a well-preserved and reliable example of the Speedmaster Moonwatch from 1978. It features an original black tritium dial with even yellow patina across all hour markers, adding warmth and character to the watch.

Condition: Very good overall shape, all-original condition
Case diameter: 42mm
Year of production: 1978
Bracelet size: 7.6–7.7 inches (19.7 cm)

Posted at

Mar 13, 2026, 1:02 PM

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Omega Speedmaster Reduced 3510.82 " Blue " JDM LE - $4199 - DHL

Omega - 3510.82 · $499

This Omega Speedmaster Reduced Limited Edition is a beautiful example of the Japanese market's exclusive 'Blue' dial, produced in 2003 and limited to 1,500 pieces.

Condition: Good (9/10)
Limited edition size: 1,500 pieces
Case size: 39mm diameter
Condition rating: 9/10

Posted at

Mar 13, 2026, 11:43 AM

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OMEGA Speedmaster Date 40mm 18k Bezel Full Kit

Omega - 323.21.40.40.02.001 · $3,500

Up for sale is a Omega Speedmaster Date 40mm Steel/Yellow Gold Ref. 323.21.40.40.02.001, a full kit.

Case size: 40mm diameter
Material: Steel and Yellow Gold

Posted at

Mar 13, 2026, 10:36 AM

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Omega Speedmaster Date 3513.50 $1,800

Omega - 3513.50 · $1,800

This Omega Speedmaster Date features a deep sunburst textured black dial with a classic polished bezel, powered by the Omega 1152, Valjoux 7750 date automatic chronograph.

Condition: Good
Case size: 39mm diameter
Wrist size limit: 7.3-inch wrist

Posted at

Mar 13, 2026, 10:00 AM

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Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

Omega - 310.30.42.50.04.001 · $8,125

This Omega Speedmaster Moonwatch Professional features a white dial and is sold as a full set, including box, historical booklet, user manual, microfiber cloth, master chronometer card, warranty card, and more. The watch functions perfectly mechanically and comes in fantastic condition.

Condition: pristine with minor hairlines on clasp, case, and bracelet
Case size: 42mm diameter

Posted at

Mar 13, 2026, 5:33 AM

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Omega OEM Integrated Speedmaster Rubber Strap + OEM Deployant Clasp – 20mm

Omega - 032Z017245, STZ007387 · $520

A set of Omega OEM accessories for the Speedmaster watch, including a black rubber strap and deployant clasp.

Condition: Excellent condition overall
Material: rubber, stainless steel
Strap taper: 20mm to 16mm

Posted at

Mar 12, 2026, 9:16 PM

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Omega Speedmaster Moonphase 2023 Black 304.30.44.52.01.001 Full Set - $7,795

Omega - 304.30.44.52.01.001 · $7,795

Up for sale is an Omega Speedmaster Moonphase Black, a 2023 model in excellent condition.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual

Posted at

Mar 12, 2026, 5:54 PM

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Omega Speedmaster Professional Moonwatch – 2021 – Hesalite – Excellent

Omega - 310.30.42.50.01.001 · $5,150

This is the new generation reference 3861, featuring the updated Master Chronometer movement and classic hesalite crystal, keeping the traditional Moonwatch look.

Condition: Excellent
Case Size: 42mm diameter
Movement: Manual Wind (Omega Caliber 3861)
Crystal: Hesalite

Posted at

Mar 12, 2026, 4:12 PM

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