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.
Buy Now on Jomashop
This is an affiliate link

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 Moonphase | Ref. 304.33.44.52.03.001 | 2024 | Complete Set Mint | $7,399 Shipped

Omega Speedmaster Moonphase | Ref. 304.33.44.52.03.001 | 2024 | Complete Set Mint | $7,399 Shipped

The Omega Speedmaster Moonphase combines the classic Moonwatch design language with added complications and a stunning blue colorway, featuring a chronograph, moonphase display at 6 o'clock, pointer date subdial at 9 o'clock, powered by Co-Axial Master Chronometer movement.

  • Condition: Excellent overall
  • Case size: 44.25mm diameter
  • Movement: Co-Axial Master Chronometer movement
  • Complications: chronograph, moonphase display, pointer date subdial
Posted at
Jan 10, 2026, 8:06 PM
Active
[WTS] Excellent Omega Speedmaster Broad Arrow Co-Axial GMT Mens Watch $2750

Excellent Omega Speedmaster Broad Arrow Co-Axial GMT Mens Watch $2750

This Omega Speedmaster Broad Arrow Co-Axial GMT is a high-quality watch featuring an automatic movement and stainless steel case. It measures 44mm in width, making it suitable for larger wrists.

  • Condition: Pre-owned
  • Case width: 44mm (without crown)
  • Band size: fits up to approx 20cm
  • Movement: automatic 3603
Posted at
Jan 10, 2026, 8:01 PM
Active
[WTS] 2024 Omega Speedmaster Moonwatch White Dial 42 310.30.42.50.04.001

2024 Omega Speedmaster Moonwatch White Dial 42 310.30.42.50.04.001

Omega - 31030425004001 · $7,350
This watch is a 2024 Omega Speedmaster Moonwatch with a white dial, coming as a full set with card dated 2024 and in good pre-owned condition.

  • Condition: pre-owned
  • Year Of Manufacture: 2024
  • Diameter: 42mm
Posted at
Jan 10, 2026, 10:30 AM
Active
[WTS] 2023 Omega Speedmaster Silver Snoopy Award on Bracelet + Straps Full Set Mint Condition

2023 Omega Speedmaster Silver Snoopy Award on Bracelet + Straps Full Set Mint Condition

Omega - 310.32.42.50.02.001 · $15,999
This is a 2023 Omega Speedmaster Silver Snoopy Award on Bracelet + Straps Full Set in mint condition.

  • Condition: Mint Condition, like new preowned
  • Size: 40mm diameter
  • Depth Rating: 50m water resistance
  • Case Material: Stainless Steel
Posted at
Jan 9, 2026, 11:43 PM
Active
[WTS] Omega Speedmaster Black Fabric Strap

Omega Speedmaster Black Fabric Strap

Omega - CWZ014117 · $240
Up for sale is my Omega Speedmaster black fabric strap, ref. CWZ014117, which has never been worn.

  • Condition: Like new
  • Strap Type: Black fabric strap
  • Includes Accessories: No deployant or spring bars included
Posted at
Jan 9, 2026, 11:11 PM
Active
[WTS] 1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

Omega - 3590.50 · $4,000
This 1991 Omega Speedmaster Moonwatch is in excellent condition with an original tritium dial and hands, and a correct Omega hesalite crystal.

  • Condition: Excellent vintage condition, unpolished
  • Serial number: 482774XX
  • Movement: caliber 861
  • Bracelet size: 1479/812, currently sized for a 6.8" wrist
Posted at
Jan 9, 2026, 5:57 PM
Active
[WTS] Omega Speedmaster Reduced — $2500 USD

Omega Speedmaster Reduced — $2500 USD

Omega - 3510.50 · $2,500
For sale is my Omega Speedmaster Reduced with a 39mm case size and automatic movement.

  • Condition: Excellent
  • Case Size: 39mm
  • Movement Type: Automatic
Posted at
Jan 9, 2026, 5:55 PM
Active
[WTS] Omega Speedmaster Reduced, ref. 175.0032.1, Factory Service Papers, Box, Accessories

Omega Speedmaster Reduced, ref. 175.0032.1, Factory Service Papers, Box, Accessories

Omega - 175.0032.1 · $2,700
The Omega Speedmaster Reduced is a beautiful watch in excellent condition, with factory service papers and box included.

  • Condition: Excellent
  • Service cost: $850
  • Year of service: 2019
Posted at
Jan 9, 2026, 5:34 PM
Active