Omega Speedmaster Speedmaster Professional Missions Gemini VI

Reference 3597.04.00

About this watch

The Omega Speedmaster Professional Missions Gemini VI is a masterpiece of luxury watchmaking. This limited edition timepiece celebrates the Gemini VI space mission with its striking black dial and stainless steel case measuring 42mm in diameter. The plexi glass adds a vintage charm, while the tachymeter bezel offers a sporty touch. At the heart of this watch lies the Omega caliber 1861, a hand-wound chronograph movement renowned for its reliability and precision. With a power reserve of 48 hours and a frequency of 21,600 vibrations per hour, it keeps time admirably. The small seconds, hours, and minutes hands offer a traditional analog display that harkens back to the original Speedmaster models. The Omega Speedmaster Professional Missions Gemini VI is not just a watch; it's a piece of history, a testament to Omega's dedication to quality and innovation.
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Key Features

  • Omega caliber 1861 movement
  • 42mm stainless steel case
  • Plexi glass with vintage charm
  • Tachymeter bezel for measuring speed
  • Limited edition of 200 units
  • 50m water resistance
  • Traditional analog display

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Missions Gemini VI
Reference
3597.04.00
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 3520.53 Box & Card - $2,900

Omega Speedmaster 3520.53 Box & Card - $2,900

Omega - 3520.53 · $2,900
A 39mm Omega Speedmaster 3520.53 in great condition, featuring an automatic movement and a steel case on an original Omega Steel bracelet.

  • Condition: 8.8/10 great condition with some usage marks and micro scratches on the blue AR coating
  • Case size: 39mm diameter
  • Movement type: automatic
  • Bracelet length: fits up to 7 inch wrists
Posted at
Dec 22, 2025, 9:30 PM
Active
[WTS] Omega Speedmaster Dark Side of the Moon

Omega Speedmaster Dark Side of the Moon

A modern all ceramic Omega Speedmaster Dark Side of the Moon, powered by a co-axial movement, available as watch only.

  • Condition: very good
  • Size: 44mm diameter
  • Movement: Co-Axial Automatic
Posted at
Dec 22, 2025, 8:36 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped

Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped

A 2022 Omega Speedmaster Moonwatch Professional Sapphire, featuring a sapphire crystal and display caseback, with a manual-wind chronograph movement.

  • Condition: Great
  • Case size: 42mm diameter
  • Movement: Manual-wind chronograph (Omega Caliber 3861)
  • Crystal: Sapphire
Posted at
Dec 22, 2025, 7:27 PM
Active
[WTS] Omega Speedmaster 3590.50

Omega Speedmaster 3590.50

A summary of the watch in the listing is not provided.

Posted at
Dec 22, 2025, 4:21 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega - 145.022-69 · $5,425
  • Condition: serviced, professionally serviced in November 2022
  • Case size: 42mm
  • Movement: 861 caliber
  • Bracelet size: up to 7.5” (19cm)
Posted at
Dec 22, 2025, 4:08 PM
Active
[wts] Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001

Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001

This Omega Speedmaster racing is a 44.25mm model with a factory warranty until AUG 2025, described as really clean and full set.

  • Condition: Mint and full set
  • Case Size: 44.25mm diameter
Posted at
Dec 22, 2025, 3:46 PM
Active
[WTS] OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET!

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET!

OMEGA - 311.30.40.30.01.001 · $18,000
The OMEGA Speedmaster Calibre 321 Ref. 311.30.40.30.01.001 is a faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk.

  • Condition: UNWORN
  • Material: stainless steel
  • Size: 39.7mm diameter
  • Caseback material: sapphire
Posted at
Dec 22, 2025, 9:11 AM
Active
[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET!

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET!

OMEGA - 311.92.44.30.01.001 · $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 commemorates the 50th anniversary of the Apollo 8 mission, a technical and artistic tribute to space exploration. This watch features a black ceramic case, skeletonized dial, laser-ablated lunar surface, and Calibre 1869 movement with blackened bridges.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869
Posted at
Dec 22, 2025, 9:06 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 · $4,200
A 42mm Omega Speedmaster Broad Arrow with a white dial, part of the full set including box and manuals.

  • Condition: Fantastic condition with minor hairlines
  • Case size: 42mm diameter
Posted at
Dec 22, 2025, 7:12 AM
Active