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
50

Current Listings

[WTS] Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 "Sapphire Sandwich."

Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 "Sapphire Sandwich."

The Omega Speedmaster Moonwatch Professional, also known as the 'Sapphire Sandwich', is a modern iteration of the timepiece that went to the moon. It features a sapphire crystal front and caseback, redesigned bracelet, and Co-Axial Master Chronometer movement.

  • Condition: Excellent
  • Case material: Sapphire crystal front and caseback
  • Bracelet condition: Excellent
  • Movement: Co-Axial Master Chronometer
Posted at
Jan 12, 2026, 4:55 PM
Active
[WTS] LNIB 3 Month Old Omega Speedmaster Pro Sapphire

LNIB 3 Month Old Omega Speedmaster Pro Sapphire

This listing is for a new Omega Speedmaster Pro Sapphire Sandwhich watch. It has been worn for only three months and shows no signs of wear or scratches, with all original packaging and accessories included.

  • Condition: New condition, lightly used for 3 months
  • Age: 3 months old
  • Size: Assuming standard watch size (no specific details given)
Posted at
Jan 12, 2026, 4:05 PM
Active
[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Additional Details: Omega SpeedMaster Dark Side of the Moon with a full-ceramic case and buckle.

  • Condition: Mint, like-new
  • Case material: full ceramic
  • Year: 2019
Posted at
Jan 12, 2026, 2:45 PM
Active
[WTS] 20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

Omega - 1499 / 842 · $495
A high-quality Omega factory bracelet option with excellent build and taper, known among Speedmaster collectors.

  • Production Period: 1996-1998
  • Wrist Size Fit: 7 3/4 inches
Posted at
Jan 12, 2026, 1:09 PM
Active
[WTS] PRICE DROP: Omega Speedmaster White Dial Full Set

PRICE DROP: Omega Speedmaster White Dial Full Set

A Omega Speedmaster White Dial full set, including a flat link bracelet honoring the original Speedmaster from 1957.

  • Bracelet style: flat link, honoring original 1957 Speedmaster
  • Clasp condition: some snail trails
Posted at
Jan 12, 2026, 12:18 PM
Active
[WTS] Omega Speedmaster Moonphase 304.33.44.52.03 Blue Dial 44.25mm Full Set

Omega Speedmaster Moonphase 304.33.44.52.03 Blue Dial 44.25mm Full Set

This listing is for an Omega Speedmaster Moonphase with a blue dial and 44.25mm case size.

  • Diameter: 44.25mm
Posted at
Jan 12, 2026, 10:17 AM
Active
[WTS][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,125
An Omega Speedmaster Broad Arrow with a white dial and 42mm case, available in full set with box and papers.

  • Condition: Fantastic condition with minor hairlines on bracelet, case, and clasp
  • Case Size: 42mm diameter
  • Year: 2006
Posted at
Jan 12, 2026, 8:06 AM
Active
[WTS] Omega Speedmaster Pilot  | 2025

Omega Speedmaster Pilot | 2025

This Omega Speedmaster Pilot is the recently released flight qualified version of the Speedmaster, featuring an automatic caliber 9900 movement and sapphire crystal.

  • Condition: Excellent
  • Case size: 40.85mm
  • Case material: Steel
  • Bracelet material: Steel
Posted at
Jan 11, 2026, 8:01 PM
Active
[WTS] 2023 Omega Speedmaster Moonphase Sedna (Rose) Gold / Brown Dial

2023 Omega Speedmaster Moonphase Sedna (Rose) Gold / Brown Dial

This Omega Speedmaster Moonphase features a sophisticated evolution of the legendary Speedmaster with classical complications and modern Omega innovation, crafted in 18k Sedna Gold with a beautifully finished brown sun-brushed dial.

  • Condition: excellent
  • Case Size: 44.25mm diameter
  • Case Material: 18k Sedna Gold
  • Dial: brown sun-brushed
Posted at
Jan 11, 2026, 4:57 PM
Active