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

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Omega - Speedmaster Professional Moonwatch Sapphire Sandwich 2025 · $5,000

A Speedmaster Professional Moonwatch in the 2025 Sapphire Sandwich model, featuring a very clean case, crystal, and dial.

Condition: Very good overall
Year: 2025
Warranty Cards: 3

Posted at

May 22, 2026, 2:41 PM

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Omega Speedmaster Day Date 3523.80

Omega - 3523.80 · $2,225

For sale is an Omega Speedmaster Day Date with a beautiful blue dial. The watch is running super solid and comes as watch only.

Condition: Excellent
Payment methods accepted: crypto, other
Local pickup available: true
Open to trades for specific brands: Tudor, Cartier, Rolex, Omega, Breitling, AP

Posted at

May 22, 2026, 11:42 AM

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Omega Speedmaster Date 3511.50

Omega - 3511.50 · $1,975

a super cool reverse panda dial Omega Speedmaster date that was only sold in Japan.

Condition: Great condition
Location: Southwest FL
Payment Methods: cryptocurrency, bank transfer, other methods

Posted at

May 22, 2026, 11:32 AM

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2026 Omega Speedmaster Moonwatch Hesalite 42mm 310.30.42.50.01.001 — Like New Condition, Box & Papers

Omega - 310.30.42.50.01.001 · $6,100

The Omega Speedmaster Moonwatch Hesalite features a black stepped dial with a hesalite crystal and a manually wound caliber 3861 movement, preserving the iconic design heritage of the classic Moonwatch formula.

Condition: Like new
Case diameter: 42mm
Lug to lug: 47.5mm
Thickness: 13.2mm

Posted at

May 22, 2026, 9:30 AM

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[US] Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - 311.30.40.30.01.001 - Full Set

Omega - 311.30.40.30.01.001 · $15,450

Additional Details: Up for sale is an Omega Speedmaster Calibre 321 - Ed White - Black Dial - 39.7mm - Full Set Watch is in pristine condition and functions perfectly mechanically.

Condition: pristine condition with minor hairlines
Diameter: 39.7mm

Posted at

May 22, 2026, 7:15 AM

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2023 Omega Speedmaster Moonphase Blue Side of the Moon 304.93.44.52.03.001 Full Set - $9,395

Omega - 304.93.44.52.03.001 · $9,395

This Omega Speedmaster Moonwatch - Blue Side of the Moon is a 2023 model, featuring a moonphase complication.

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

May 21, 2026, 7:42 PM

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2020 Omega Speedmaster Moonphase Black 304.30.44.52.01.001 Full Set - $7,995

Omega - 304.30.44.52.01.001 · $7,995

Up for sale is a Omega Speedmaster Moonphase Black watch, a 2020 model. It has been thoroughly tested and is running well without the need for service.

Condition: Excellent condition with minimal signs of wear
Year: 2020
Contents: watch, inner & outer box, card holder, international warranty card, pictograms card, master chronometer card, instructions manual

Posted at

May 21, 2026, 7:40 PM

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2026 OMEGA Speedmaster Professional MOONWATCH 42mm "REVERSE PANDA" 310.30.42.50.01.004 FULL SET w/BOX & PAPERS

OMEGA - 310.30.42.50.01.004 · $10,485

2026 OMEGA Speedmaster Professional MOONWATCH in stainless steel with a Reverse Panda dial and chronograph complication.

Condition: Excellent Condition
Case size: 42mm
Movement caliber: 3861 Caliber Movement
Warranty left: 4 years

Posted at

May 21, 2026, 3:36 PM

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Omega Speedmaster Moonwatch 3861 Panda 310.30.42.50.01.004 ( new / 2026 / box and papers )

Omega - 310.30.42.50.01.004 · $10,795

This Omega Speedmaster Moonwatch Professional features a stainless steel case and a sapphire crystal. It comes with an adjustable clasp and is complete with all boxes, papers, booklet, hang tag, and Omega Warranty Card.

Condition: Brand new
Case size: 42mm diameter
Movement: Omega Master Chronometer Movement 3861
Shipping cost international: $150

Posted at

May 21, 2026, 12:36 PM

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