Omega Speedmaster Speedmaster Professional Missions Gemini XI

Reference 3597.09.00

About this watch

The Omega Speedmaster Professional Missions Gemini XI, with its reference number 3597.09.00, is a piece of horological history that embodies the spirit of adventure and precision that Omega is renowned for. This limited edition, produced between January 1997 and July 1998, features a striking black dial, a robust stainless steel case, and a legendary Omega caliber 1861 movement. With only 200 units produced, this watch is a true collector's item and a testament to Omega's commitment to excellence and innovation.

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Key Features

Omega Caliber 1861 Hand-Wound Movement
42mm Stainless Steel Case with Plexiglass Crystal
Tachymeter Bezel for Precise Measurements
Limited Edition of Only 200 Units Produced
50m Water Resistance Suitable for Light Swimming
Stainless Steel Bracelet with 20mm Lug Width
Iconic Design that Stands the Test of Time

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Missions Gemini XI

Reference

3597.09.00

Movement

1861

Movement Features

Small Seconds, Hours, Minutes
Chronograph

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Plexi

Water Resistance

Current Listings

Omega Speedmaster Reduced 3539.50.

Omega - 3539.50 · $3,400

This Omega Speedmaster Reduced features a 39mm case size, sapphire crystal, and 100m water resistance.

Condition: Pre-owned with signs of wear
Case Size: 39mm
Water Resistance: 100m
Bracelet Fit: 7 inch wrist

Posted at

Feb 19, 2026, 3:35 AM

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Omega Links for 20mm bracelet on the APOLLO 50th Anniversary Speedmaster 310.20.42.50.01.001 – Mint Condition

Omega - 310.20.42.50.01.001 · $50

A Speedmaster with a co-axial master chronometer and chronograph, part of the anniversary series.

Condition: Mint Condition
Bracelet size: 20mm (tapering to 16mm)
Bracelet type: 20mm

Posted at

Feb 19, 2026, 2:40 AM

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Omega Speedmaster Moonwatch Pro Cal 3861 Ref 310.30.42.50.01.002 Mint

Omega - 310.30.42.50.01.002 · $6,975

This Omega Speedmaster Moonwatch Pro Caliber 3861 is a highly equipped model with its original stickers, retail tag, an Omega style forstner bracelet, and the mint OEM bracelet.

Condition: Mint
Bracelet value: $180
Bracelet type: Omega style forstner

Posted at

Feb 18, 2026, 6:17 PM

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Omega Speedmaster Professional Moonwatch Hesalite 311.33.42.30.01.001

Omega - 311.33.42.30.01.001 · $5,950

Omega Speedmaster Professional Moonwatch Hesalite, purchased brand new in 2021/22 and rarely worn.

Condition: Great condition
Caliber: 1816
Accessories included: Full box/papers

Posted at

Feb 18, 2026, 5:55 PM

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Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina Original Step Tritium Dial (Unpolished)

Omega - 145.022-69 · $5,235

This Omega Speedmaster Professional Moonwatch features a razor-sharp case with crisp edges and an original factory finish. The watch is fitted with its period-correct black tritium step dial displaying warm yellow patina.

Condition: Unpolished, all-original condition
Case size: 42mm diameter
Bracelet length: full length (fits wrist over 8 inches)
Movement service: serviced in February 2026

Posted at

Feb 18, 2026, 5:28 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 · $3,795

The Omega Speedmaster Racing features a striking silver white dial, bold chronograph hands and counters, and a stainless steel case and bracelet. It honors heritage, delivers precision, and adds a fresh twist with its bright dial.

Condition: Excellent
Diameter: 40mm
Movement: chronograph movement

Posted at

Feb 18, 2026, 5:22 PM

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