Omega Speedmaster Speedmaster Professional Missions Gemini XI

Reference 3597.09.00

Omega Speedmaster Professional Missions Gemini XI

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 馃崼

Omega Speedmaster Moonphase 馃崼

Omega - 304.23.44.52.13.001 路 $8,500
This Omega Speedmaster Moonphase is a two-tone model featuring steel and Sedna gold, housed in a 44mm case.

  • Condition: Very good condition with some normal wear
  • Movement: Cal 9904
  • Size: 44mm diameter
Posted at
Apr 28, 2026, 9:00 PM
Active
View listing on r/WatchExchange
[WTS] Omega. Speedmaster. Reverse Panda. Complete Set. $2099 Only

Omega. Speedmaster. Reverse Panda. Complete Set. $2099 Only

Omega - Speedmaster 路 $2,099
This Omega Speedmaster is a Reverse Panda model, complete with its original set including warranty, tag, inner and outer box, and two booklets.

  • Condition: 7.75/10 with wear around bezel
  • Bracelet size: 20 links
  • Warranty status: Complete
  • Box condition: Inner and Outer Box, 2 booklets
Posted at
Apr 28, 2026, 8:36 PM
Active
View listing on r/WatchExchange
[WTS] (Omega) Speedmaster Date 3511.50 Full Set $2,099

(Omega) Speedmaster Date 3511.50 Full Set $2,099

Omega - 3511.50 路 $2,099
For sale is an Omega Speedmaster Date, reference 3511.50, a reduced variant made for the Japanese market. This automatic watch features a 39mm case and 18mm lugs.

  • Condition: Excellent external condition, running well internally
  • Case size: 39mm diameter
  • Lug-to-lug length: 45mm
  • Thickness: 13.8mm
Posted at
Apr 28, 2026, 8:18 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Reduced - Mother of Pearl - White Dial - Factory Strap

Omega Speedmaster Reduced - Mother of Pearl - White Dial - Factory Strap

Omega - Speedmaster Reduced 路 $2,350
A rare and unique Omega Speedmaster reduced model with a 39mm case, featuring a stunning Mother of Pearl dial.

  • Condition: Good condition for the age
  • Case size: 39mm
  • Strap type: Factory Omega leather strap
Posted at
Apr 28, 2026, 5:37 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Racing - 32630405001002

Omega Speedmaster Racing - 32630405001002

Omega - 32630405001002 路 $2,999
This Omega Speedmaster Racing is in good condition, having been worn a handful of times. It features desk diving scratches on the clasp.

  • Condition: Pre-owned, minor scratches
  • Scratches location: Clasp
  • Shipping discussion possible: true
Posted at
Apr 28, 2026, 5:06 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Moonwatch Hesalite 1861 3570.50.00 ( excellent / 2007 / box and papers )

Omega Speedmaster Moonwatch Hesalite 1861 3570.50.00 ( excellent / 2007 / box and papers )

Omega - 3570.50.00 路 $4,750
This Omega Speedmaster Moonwatch Professional Chronograph 1861 is a 42mm stainless steel watch with Hesalite crystal, reference # 3570.50.00.

  • Condition: Excellent condition
  • Case size: 42mm diameter
  • Movement: 1861 Omega Calibre
Posted at
Apr 28, 2026, 1:36 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Sapphire New 2026, $7500

Omega Speedmaster Sapphire New 2026, $7500

Omega - 310.30.42.50.01.002 路 $7,500
This listing is for a brand new Omega Speedmaster Sapphire, featuring a reference number of 310.30.42.50.01.002 and coming with its original box and warranty.

  • Condition: Brand New Condition
  • Shipping Cost: $150 for USA
  • Payment Methods: Wire or Credit Card (+4.9% & 4 days clearance)
  • Warranty Year: 2026
Posted at
Apr 28, 2026, 10:35 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Moonshine Green Dial 2023, $29k+鉁堬笍

Omega Speedmaster Moonshine Green Dial 2023, $29k+鉁堬笍

Omega - 310.60.42.50.10.001 路 $29,000
2023 Omega Speedmaster Moonshine Green Dial, with a layer of aftermarket watch protection film on.

  • Condition: Preowned Condition
Posted at
Apr 28, 2026, 10:31 AM
Active
View listing on r/WatchExchange
[WTS][US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set

[US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set

Omega - 310.30.40.50.06.001 路 $7,525
Up for sale is an Omega Speedmaster First Omega in Space - FOiS - Full Set, which functions perfectly mechanically without issue.

  • Condition: Fantastic with few hairlines
  • Case Condition: few hairlines on case, clasp, and bracelet
  • Box Status: Full Set
Posted at
Apr 28, 2026, 8:44 AM
Active
View listing on r/WatchExchange