Omega Speedmaster Speedmaster Professional Moonwatch 3861 Canopus Gold - Rainbow / Silver - Rainbow / Bracelet

Reference 310.55.42.50.52.002

Omega Speedmaster Professional Moonwatch 3861 Canopus Gold - Rainbow / Silver - Rainbow / Bracelet

About this watch

The Omega Speedmaster Professional Moonwatch 310.55.42.50.52.002 is a legendary timepiece that combines stunning aesthetics with advanced horological technology. This manual-winding chronograph movement boasts exceptional precision and reliability, featuring a co-axial escapement and silicon balance spring. The watch's luxurious materials, including Canopus gold and gem-set bezel, add a sophisticated touch. With its water resistance of 50 meters, this watch is perfect for everyday adventures. The Speedmaster series is Omega's flagship line, known for its association with space exploration, making it a worthy investment for collectors and enthusiasts.
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Key Features

  • Omega caliber 3861 movement
  • Canopus gold case and bezel
  • Gem-set indexes and rainbow accents
  • Chronograph function with co-axial escapement
  • Silicon balance spring for exceptional reliability
  • Water resistance of 50 meters

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Canopus Gold - Rainbow / Silver - Rainbow / Bracelet
Reference
310.55.42.50.52.002
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
White Gold 42mm
Dial Color
Silver
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Moonwatch Sapphire Sandwich 310.30.42.50.01.002

Omega Speedmaster Moonwatch Sapphire Sandwich 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $6,400
This Omega Speedmaster Moonwatch Sapphire Sandwich features a 42mm case, manual-winding Caliber 3861 with 50 hours of power reserve, and comes equipped with the standard brushed and polished OEM Omega "sapphire sandwich" bracelet. It was purchased from an Omega boutique in June 2022.

  • Condition: amazing condition
  • Case diameter: 42mm
  • Case thickness: 13.18mm
  • Lug width: 20mm
Posted at
May 26, 2026, 4:44 PM
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[WTS] Omega Speedmaster Professional Ref. 145.012-67 SP. Pre-Moon Full Collector's Set!

Omega Speedmaster Professional Ref. 145.012-67 SP. Pre-Moon Full Collector's Set!

Omega - 145.012-67 SP · $17,000
This listing features a rare Omega Speedmaster Professional Ref. 145.012-67 SP in its final and most desirable form, housing the legendary Caliber 321 column-wheel movement. The watch comes as a full collector's set with original Omega box and international guarantee papers dated August 22, 1968.

  • Condition: Pre-owned, original papers and box included
  • Case Manufacturer: Huguenin Frères (HF)
  • Movement: Caliber 321, serial 26.xxx.xxx
  • Bezel Type: Dot Over Ninety (DON) bezel
Posted at
May 26, 2026, 4:32 PM
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[WTS] Omega Speedmaster "Ed White" 311.30.40.30.01.001 Collector’s set in Excellent Condition

Omega Speedmaster "Ed White" 311.30.40.30.01.001 Collector’s set in Excellent Condition

Omega - 311.30.40.30.01.001 · $16,700
The Omega Speedmaster "Ed White" is a tribute to the first American spacewalk, featuring a 39.7mm straight-lug case and manual-wind caliber 321 reissue.

  • Condition: Excellent condition with only minor signs of any wear
  • Case size: 39.7mm
  • Bracelet style: flat-link style
Posted at
May 26, 2026, 1:55 PM
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[WTS] Omega Speedmaster Dark Side of the Moon 44.25mm 310.92.44.51.01.002 ( new / 2025 / box and papers )

Omega Speedmaster Dark Side of the Moon 44.25mm 310.92.44.51.01.002 ( new / 2025 / box and papers )

Omega - 310.92.44.51.01.002 · $13,550
This Omega Speedmaster Dark Side of the Moon features a 44.25mm black ceramic case and is powered by the Omega Co-Axial Calibre 9900. It comes with all original boxes, papers, and accessories.

  • Condition: Brand new
  • Case size: 44.25mm
  • Material: Black Ceramic
  • Movement: Omega Co-Axial Calibre 9900
Posted at
May 26, 2026, 1:32 PM
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[WTS] BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,699

BNIB Omega Speedmaster Professional 310.30.42.50.01.001 $6,699

Omega - 310.30.42.50.01.001 · $6,699
The Omega Speedmaster Moonwatch Professional features a robust and elegant 42mm stainless steel case with a hesalite front and solid case back powered by the updated caliber 3861 movement.

  • Condition: Brand new in box with warranty
  • Case size: 42mm diameter
  • Case thickness: 13.2mm
  • Lug width: 20mm
Posted at
May 26, 2026, 1:31 PM
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[WTS] Omega Speedmaster Reduced 3510.50.00 Early Tritium Dial, Hollow Endlinks, Unpolished | Fresh Service | $2,699 Shipped

Omega Speedmaster Reduced 3510.50.00 Early Tritium Dial, Hollow Endlinks, Unpolished | Fresh Service | $2,699 Shipped

Omega - 3510.50.00 · $2,699
This Omega Speedmaster Reduced features an early tritium dial with beautiful warm patina and a hollow endlink bracelet configuration, giving it a unique vintage aesthetic. The watch has been serviced and is running strongly.

  • Condition: Excellent overall for its age
  • Bracelet length: ~18cm/~7.1 inches
  • Movement: Omega Cal. 1140 (Automatic chronograph, ETA 2890-A2 + Dubois-Dépraz module)
  • Water resistance: 30m
Posted at
May 26, 2026, 11:48 AM
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[WTS] 2025 Omega Speedmaster "Silver Snoopy Award" 310.32.42.50.02.001 — Excellent Condition, Box & Papers

2025 Omega Speedmaster "Silver Snoopy Award" 310.32.42.50.02.001 — Excellent Condition, Box & Papers

Omega - 310.32.42.50.02.001
2025 Omega Speedmaster Silver Snoopy Award for sale in excellent condition, complete with box and papers.

  • Condition: Excellent Condition
  • Box and papers included: yes
Posted at
May 26, 2026, 9:05 AM
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[WTS] Omega Speedmaster Reduced 3510.50 Mint Full Set $3150

Omega Speedmaster Reduced 3510.50 Mint Full Set $3150

Omega - 3510.50 · $3,150
This Omega Speedmaster Reduced is a beautiful timepiece from 1998, featuring a stainless steel case with twisted lugs and a matte black dial with Luminova markings.

  • Condition: Mint condition
  • Material: stainless steel
  • Case diameter: 39mm
  • Movement: automatic Omega caliber 3220 (ETA 2890-2 with Dubois-Depraz chronograph module)
Posted at
May 26, 2026, 9:01 AM
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[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 · $7,425
Up for sale is an Omega Speedmaster First Omega in Space - FOiS watch, a mechanical timepiece that functions perfectly.

  • Condition: Fantastic condition with few hairlines on case, clasp, and bracelet
  • Case diameter: 40mm
  • Bracelet type: full set with linked bracelet
Posted at
May 26, 2026, 7:08 AM
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