Omega Speedmaster Speedmaster Professional Missions Gemini X

Reference 3597.08.00

About this watch

The Omega Speedmaster 3597.08.00 is a masterclass in luxury watchmaking, blending technical excellence with timeless design. This limited edition timepiece, part of the illustrious Speedmaster family, boasts a sleek black dial and stainless steel case that exudes both robustness and elegance. Powered by the reliable Omega caliber 1861 movement, this hand-wound masterpiece provides excellent performance for daily wear, with a frequency of 21,600 vibrations per hour and a 48-hour power reserve. The chronograph feature is a vital part of its appeal, offering practical functionality for various activities. With only 200 units produced between January 1997 and July 1998, this watch is a rare gem that combines history, craftsmanship, and luxury.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega caliber 1861 movement
  • Limited edition of 200 units
  • Stainless steel case and bracelet
  • Plexi glass instead of sapphire crystal
  • Chronograph feature with small seconds, hours, and minutes counters
  • Water resistance rating of 50 meters
  • 42mm diameter and 20mm lug width

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Missions Gemini X
Reference
3597.08.00
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. Gorgeous Dial. Clean.

Omega Speedmaster. Moonphase. Gorgeous Dial. Clean.

This Omega Speedmaster features a 42mm diameter, moonphase display, and blue hands, with very good lume. The watch runs strong and has a very crisp dial.

  • Condition: Clean, runs strong
  • Case Size: 42mm
Posted at
Feb 16, 2026, 6:27 PM
Active
[WTS] 20mm Horus Rubber Straps for Omega Speedmaster & Moonswatch + other brands (Well below retail)

20mm Horus Rubber Straps for Omega Speedmaster & Moonswatch + other brands (Well below retail)

· $49
Horus Rubber Straps for various brands including Omega Speedmaster and Moonswatch, designed to give a fun pop to these watches.

  • Condition: Like New
  • Material: Rubber
  • Colors: Blue Lavender,Light pink,Red,Translucent Lime Green,Sky Blue,Hot Pink
  • Compatibility: Omega Speedmaster,Moonswatch,Sinn,Zelos Swordfish,Heuer,Seamaster,IWC
Posted at
Feb 16, 2026, 6:10 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch *Mint*

Omega Speedmaster Professional Moonwatch *Mint*

Omega - 31030425001002 · $6,250
This Omega Speedmaster Professional 'Sapphire Sandwich' model features a caliber 3861 and is a full kit including the watch on bracelet, presentation box, cards, and booklet.

  • Condition: Mint, like new
  • Caliber: 3861
  • Shipping: fully insured within continental US
Posted at
Feb 16, 2026, 2:48 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Hesalite, 4/25 full set, Mint, $5800

Omega Speedmaster Professional Moonwatch Hesalite, 4/25 full set, Mint, $5800

A legendary Omega Speedmaster Professional Moonwatch featuring the Co-Axial Master Chronometer Caliber 3861, purchased new in April 2025 and remaining in mint condition.

  • Condition: Mint condition, no signs of wear
  • Case size: 42mm diameter
  • Water resistance: 50m depth rating
  • Crystal material: Hesalite
Posted at
Feb 16, 2026, 2:25 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch 310.30.42.50.01.001

Omega Speedmaster Professional Moonwatch 310.30.42.50.01.001

2023 Omega Speedmaster Professional Moonwatch Hesalite in excellent condition, features a 3861 movement keeping excellent time and comes with additional accessories.

  • Condition: good
  • Movement: 3861
  • Crystal type: Hesalite
  • Bracelet adjustment: 7.3 inch wrist
Posted at
Feb 16, 2026, 12:39 PM
Active
[WTS] OMEGA Speedmaster Date 40mm Full Kit 18k Gold/Steel

OMEGA Speedmaster Date 40mm Full Kit 18k Gold/Steel

Up for sale is a Omega Speedmaster Date 40mm Steel/Yellow Gold Ref. 323.21.40.40.02.001, This is a full kit.

  • Case Size: 40mm
  • Materials: Steel/18k Yellow Gold
Posted at
Feb 16, 2026, 10:39 AM
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

Omega - 304.33.44.52.03 · $7,494
The Omega Speedmaster Moonphase features a blue dial, moonphase complication at 6 o'clock, and Co-Axial Master Chronometer automatic movement.

  • Condition: Very good
  • Case size: 44.25 mm
  • Movement type: Co-Axial Master Chronometer automatic
Posted at
Feb 16, 2026, 9:59 AM
Active
[WTS] Omega Speedmaster FOIS Numbered Edition 311.32.40.30.01.001 w/ Ed White Mods [USA-TN]

Omega Speedmaster FOIS Numbered Edition 311.32.40.30.01.001 w/ Ed White Mods [USA-TN]

This 2014 Omega Speedmaster FOIS features a numbered edition, manual winding movement, and ultra-wearable dimensions of 39.7mm x 19 x 47. The watch has been modified with OEM Speedmaster Professional Moonwatch hands and given a professional patina treatment to give it a vintage aesthetic.

  • Condition: excellent overall condition with honest light wear
  • Movement type: manual winding 1861 movement
  • Water resistance: unknown
  • Dimensions: 39.7mm x 19 x 47
Posted at
Feb 15, 2026, 6:04 PM
Active
[WTS] Omega Speedmaster Broad Arrow 1957 321.10.42.50.01.001 Full Set

Omega Speedmaster Broad Arrow 1957 321.10.42.50.01.001 Full Set

A modern tribute to the legendary original Speedmaster design, this Omega Speedmaster Broad Arrow 1957 features a black dial and classic Speedmaster styling with a modern 42 mm case for everyday wearability.

  • Condition: Excellent
  • Case size: 42 mm diameter
  • Set: Full set (watch, box, papers, and accessories as originally supplied)
Posted at
Feb 15, 2026, 4:21 PM
Active