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

Current Listings

Omega Speedmaster 145.022-69 Pre-Moon

Omega - 145.022-69 · $5,000

A pre-moon Omega Speedmaster in great shape with a faded bezel and factory crystal.

Condition: Pre-owned, some servicing required
Case shape: round
Dial color: black
Bracelet included: yes

Posted at

Feb 8, 2026, 2:43 PM

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LEGENDARY 1967 Omega Speedmaster Ed White Pre Moon Cal 321 Chronograph Ref ST 105.003 on Rare JB Champion Bracelet w/ Extract!

Omega - ST 105.003 · $11,950

This Omega Speedmaster Ed White Pre Moon Cal 321 Chronograph is an iconic watch that went to space on the wrist of astronaut Ed White in 1965. The watch comes with an Omega extract showing it was originally delivered to Italy and features a rare JB Champion mesh bracelet.

Condition: Excellent, minimal signs of wear
Bracelet type: Rare JB Champion mesh bracelet
Movement: Cal 321 hand winding chronograph
Case size: 40MM diameter

Posted at

Feb 8, 2026, 2:29 PM

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Omega 310.63.42.50.10.001 Gold Speedmaster Moonwatch

Omega - 310.63.42.50.10.001 · $18,600

A gold Omega Speedmaster Moonwatch with a beautiful green dial and bezel, and an incredible exhibition caseback.

Condition: Excellent near mint condition
Case size: 42mm diameter
Warranty expiration date: December 26, 2025

Posted at

Feb 8, 2026, 1:42 PM

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310.30.42.50.01.002 Omega Sapphire Speedmaster 2025 | Complete Box & Papers | $6,699 shipped

Omega - 310.30.42.50.01.002 · $6,699

This is the current-generation sapphire sandwich reference Omega Speedmaster Professional featuring the classic black dial on a stainless steel bracelet and the updated Caliber 3861 movement. The watch comes complete with original inner and outer boxes, booklet, and warranty card.

Condition: Excellent overall condition, with a few light marks on the case and minor hairlines on the bracelet.
Case size: 42mm
Movement: Manual-wind Caliber 3861 (Master Chronometer)
Crystal: Sapphire (front & display caseback)

Posted at

Feb 8, 2026, 1:35 PM

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2025 Unworn Omega Speedmaster 38mm Cappuccino Sedna Gold With Factory Diamonds 324.28.38.50.02.002 Just In Time For Valentines! $9,495

Omega - 324.28.38.50.02.002 · $9,495

This listing features a brand new Omega Speedmaster, ideal for Valentine's Day.

Condition: Unworn
Diameter: 38mm

Posted at

Feb 8, 2026, 10:58 AM

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Omega Speedmaster Racing Cart

Omega - 3510.80 · $3,899

This Omega Speedmaster Racing Cart Edition features a 39mm case in excellent condition, including original box, card, authentication papers, and extra links.

Condition: Mint
Case size: 39mm

Posted at

Feb 7, 2026, 8:16 PM

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Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050

This Omega Speedmaster Professional Moonwatch is a well-preserved and reliable example of the Speedmaster Moonwatch, featuring a black tritium dial with even yellow patina across all hour markers.

Condition: Very good overall shape, all-original condition
Case size: 42mm
Year: 1978
Movement serviced: February 2026

Posted at

Feb 7, 2026, 5:24 PM

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

Omega - 311.93.44.51.99.001 · $7,700

Up for sale is an Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm watch that functions perfectly mechanically.

Condition: Great condition, small chip on edge of case back
Case Size: 44mm diameter
Case Back Condition: small chip at 9-o'clock

Posted at

Feb 7, 2026, 11:30 AM

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BNIB 2026 Omega Speedmaster Moonwatch Professional White $7,999

Omega - 310.30.42.50.04.001 · $7,999

The 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 more modern look.

Condition: Brand new in box with no issues
Case size: 42mm
Case thickness: 13.2mm
Lug width: 20mm

Posted at

Feb 7, 2026, 11:13 AM

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