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 3861 Sapphire Sandwhich

Omega - 3861 · $6,100

This is a 2022 Omega Speedmaster 3861 on warranty card, sized for a 7-inch wrist. It comes with additional accessories and has shown signs of strap change wear.

Condition: Good
Warranty: Yes, on warranty card
Size adjustments: [object Object]
Accessories: New quick adjust clasp,Old clasp with micro adjustment tool,Uncle Seiko 1.5 link for dialing in fit

Posted at

Jan 22, 2026, 8:52 AM

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2023 Omega Speedmaster Calibre 321 “Ed White” 311.30.40.30.01.001 — Excellent Condition, Box & Papers

Omega - 311.30.40.30.01.001

2023 Omega Speedmaster Calibre 321 'Ed White' in excellent condition, including box and papers.

Condition: Excellent Condition

Posted at

Jan 22, 2026, 8:22 AM

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Omega Speedmaster Legend Schumacher edition ref 3506.61 MINT (box + warranty/picto/chronometer cards)

Omega - 3506.61 · $4,400

This Omega Speedmaster Legend Schumacher edition features a red dial, special collection engraved case back and is in mint condition with all original accessories.

Condition: Mint (unworn)
Bracelet size: full links
Case back: special collection engraved

Posted at

Jan 21, 2026, 11:10 PM

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Omega Speedmaster Day-Date Reduced ref 3222.80 MINT (box + warranty card)

Omega - 3222.80 · $3,400

This Omega Speedmaster Day-Date is a stunning example of the reduced model, featuring day, date, month, chronograph, and 24-hour indicators with a vibrant blue dial and stainless steel bracelet. The watch includes original box, warranty card, and operating manual.

Condition: Mint (unworn)
Day-date: includes day, date, month, chronograph, and 24-hour indicators
Box: included in sale
Warranty-card: included in sale

Posted at

Jan 21, 2026, 9:18 PM

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Omega Speedmaster Professional 42mm 310.30.42.50.01.002 “Sapphire Sandwich” | 2024 Complete Set

Omega - 310.30.42.50.01.002 · $6,750

2024 Omega Speedmaster Professional 'Sapphire Sandwich' 42mm watch in great condition.

Condition: Pre-Owned, slight wear on bracelet and clasp, marks on lugs
Bracelet Links: 24
Service History: Unknown
Amp Error: -1 s/d 345+

Posted at

Jan 21, 2026, 8:07 PM

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Omega Speedmaster. Sapphire Sandwich. Coaxial. Automatic. Box, Papers.

Omega - 311.30.44.50.01.002 · $4,895

The Omega Speedmaster is a popular and iconic automatic watch featuring a sapphire sandwich design.

Box: true
Papers: true
Movement: coaxial automatic

Posted at

Jan 21, 2026, 7:25 PM

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Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

Omega - 326.30.40.50.02.001 · $5,895

The Omega Speedmaster Racing features a silver white dial, stainless steel case and bracelet, and chronograph movement, making it a striking and fresh take on the classic Moonwatch profile.

Condition: Excellent
Case Size: 40mm diameter
Movement Type: chronograph

Posted at

Jan 21, 2026, 3:06 PM

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Omega Speedmaster Black Fabric Strap

Omega - CWZ014117 · $240

A black fabric strap for the Omega Speedmaster Pro watch, available for sale with free shipping.

Condition: like new, never worn
Width: 20/16mm

Posted at

Jan 21, 2026, 10:32 AM

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Omega Speedmaster Professional Moonwatch "Sapphire Sandwich" 310.30.42.50.01.002 Brand New Fully Stickered / Triple Boxed

Omega - 310.30.42.50.01.002 · $8,199

The Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' is a black dial chronograph with sapphire crystal front and back, featuring the iconic tachymeter bezel and trio of subdials. The exhibition caseback shows off the Master Chronometer certified caliber 3861 movement. This watch maintains the asymmetrical lug design and twisted lugs that protect the chronograph pushers.

Condition: Brand new - fully stickered
Case size: 42mm
Bracelet type: Five-link stainless steel

Posted at

Jan 20, 2026, 8:26 PM

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