Omega Speedmaster Speedmaster Professional Moonwatch Gemini IV 40th Anniversary

Reference 3565.80.00

About this watch

The Omega Speedmaster Professional Moonwatch Gemini IV 40th Anniversary is an iconic timepiece that celebrates a historic milestone with its blend of history, craftsmanship, and style. This limited edition watch features a stunning blue dial with stick and dot indexes, providing excellent legibility in low light conditions. The Omega caliber 1861 movement, handwound and robust, boasts a power reserve of 48 hours. The stainless steel case, with tachymeter bezel, is water-resistant up to 50 meters. This timepiece carries the legacy of adventure and exploration, making it a worthy investment for collectors and enthusiasts alike.
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MSRP: $3,200
Market Price: $7,152

Key Features

  • Omega caliber 1861 handwound movement
  • Stainless steel case with tachymeter bezel
  • Plexiglass crystal with vintage charm
  • Blue dial with stick and dot indexes
  • Water resistance up to 50 meters
  • Limited edition of only 2005 units produced

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch Gemini IV 40th Anniversary
Reference
3565.80.00
Movement
1861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
Case
Stainless Steel 42mm
Dial Color
Blue
Crystal
Plexi
Water Resistance
50

Current Listings

[WTS] Omega Brown Leather NATO 20mm strap and Spiralwinder Saphire Case back for 3861 Speedmaster

Omega Brown Leather NATO 20mm strap and Spiralwinder Saphire Case back for 3861 Speedmaster

· $125
For sale are accessories for an Omega Speedmaster, including a brown leather NATO strap and a Spiralwinder sapphire case back.

  • Condition: Good condition, some light wear
  • Lug spacing: 20mm
  • Case back material: Sapphire
Posted at
Feb 21, 2026, 7:18 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional White Dial BRACELET+STRAP COMBO 310.32.42.50.04.001 Complete Set w/Box, Paper and Warranty!

Omega Speedmaster Moonwatch Professional White Dial BRACELET+STRAP COMBO 310.32.42.50.04.001 Complete Set w/Box, Paper and Warranty!

This Omega Speedmaster Moonwatch Professional features a white dial, stainless steel case, and a domed scratch-resistant sapphire crystal. The watch has recently had a light polish to freshen it up.

  • Condition: Excellent Pre-Owned Condition
  • Case size: 42mm diameter
  • Water resistance: 50m depth rating
  • Movement: Omega Co-Axial Master Chronometer Calibre 3861
Posted at
Feb 21, 2026, 5:56 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch 311.30.42.30.01.005 – $3450 Shipped

Omega Speedmaster Professional Moonwatch 311.30.42.30.01.005 – $3450 Shipped

Up for sale is my brother’s Omega Speedmaster Professional Moonwatch, purchased new in October 2015 from Authentic Watches.

  • Condition: Pre-owned, with minor surface marks
  • Origin: Original owner
  • Purchase date: October 2015
  • Bracelet condition: Professionally refinished
Posted at
Feb 21, 2026, 4:32 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 - $2,499

Omega Speedmaster Reduced 3510.50 - $2,499

Omega - 3510.50.00 · $2,499
The Omega Speedmaster Reduced is a compact, vintage-inspired chronograph that wears comfortably and carries the iconic Speedmaster look.

  • Condition: Good overall condition for its age, acrylic diffusion and light scratches present
  • Crystal type: Hesalite crystal
  • Bracelet size: approximately 7.25 inches
Posted at
Feb 21, 2026, 3:52 PM
Active
[WTS] 2025 Omega Speedmaster Professional White 310.30.42.50.04.001 $7,499

2025 Omega Speedmaster Professional White 310.30.42.50.04.001 $7,499

This Omega Speedmaster Moonwatch Professional features a glossy white lacquered dial, black markers, and red 'Speedmaster' text. It uses the updated 3861 movement with a sapphire crystal for a modern, luxurious look.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Case Thickness: 13.2mm thickness
  • Lug Width: 20mm width
Posted at
Feb 21, 2026, 3:44 PM
Active
[WTS] Omega Speedmaster Reduced with warranty card

Omega Speedmaster Reduced with warranty card

This Omega Speedmaster Reduced from circa 1999 comes in excellent running condition with some minor scratches. It has been serviced and features an unpainted pin on the hands of the subdials.

  • Condition: Excellent, with minor scratches
  • Service date: mid 2021
  • Bracelet links: 5 removable
  • Scratches: minor
Posted at
Feb 21, 2026, 12:19 PM
Active
[WTS] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

This Omega Speedmaster Grey Side Of The Moon features a grey dial and measures 44mm in diameter.

  • Condition: great condition with small chip on edge of case back
  • Case diameter: 44mm
Posted at
Feb 21, 2026, 12:16 PM
Active
[WTS] Omega Speedmaster. 39mm. Special Dial.

Omega Speedmaster. 39mm. Special Dial.

Omega - Speedmaster · $2,275
The Omega Speedmaster is a 39mm automatic watch with a special dial, featuring additional details.

  • Diameter: 39mm
Posted at
Feb 21, 2026, 11:10 AM
Active
[WTS] Omega Speedmaster 38mm Steel/Yellow Gold Diamond Bezel – Full Set – $8,995

Omega Speedmaster 38mm Steel/Yellow Gold Diamond Bezel – Full Set – $8,995

This Omega Speedmaster 38mm features a steel and yellow gold configuration with a factory diamond bezel and silver dial.

  • Condition: Mint / excellent
  • Case size: 38mm
  • Material: Stainless steel and yellow gold
  • Bezel material: Diamond
Posted at
Feb 21, 2026, 11:04 AM
Active