Omega Speedmaster Speedmaster Professional Moonwatch 3861 Canopus Gold - Baguette / Silver - Diamond / Bracelet

Reference 310.55.42.50.52.004

Omega Speedmaster Professional Moonwatch 3861 Canopus Gold - Baguette / Silver - Diamond / Bracelet

About this watch

The Omega Speedmaster Professional Moonwatch 310.55.42.50.52.004 is a masterpiece of luxury watchmaking, marrying cutting-edge technology with exquisite craftsmanship. This modern iteration of the iconic 'Moonwatch' pays homage to its rich history while incorporating contemporary advancements. The Canopus Gold case features a sunburst finish and gem-set bezel, radiating elegance and opulence. The manual-winding chronograph movement boasts 50 hours of power reserve and resistance to magnetic fields up to 15,000 gauss. With its robust features, stunning design, and historical significance, this timepiece is a worthy investment for serious collectors and space enthusiasts. Its impeccable performance and timeless appeal make it a statement piece that will remain a favorite for years to come.

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Key Features

Manual-winding chronograph movement
Canopus Gold case with sunburst finish and gem-set bezel
Master Chronometer certification by METAS
Resistance to magnetic fields up to 15,000 gauss
50 hours of power reserve
Co-Axial escapement and Silicon balance spring

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Canopus Gold - Baguette / Silver - Diamond / Bracelet

Reference

310.55.42.50.52.004

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

White Gold 42mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

Current Listings

2024 Omega Speedmaster Professional Moonwatch Hesalite 310.30.42.50.01.001 – Full Set + Extras – $5,500 Shipped

Omega - 310.30.42.50.01.001 · $5,500

A 2024 Omega Speedmaster Professional Moonwatch Hesalite, featuring the classic configuration with a modern movement and updated bracelet.

Condition: Great (signs of wear)
Movement: Manual-wind chronograph (Omega Caliber 3861, Master Chronometer)
Case size: 42mm
Crystal: Hesalite

Posted at

Feb 4, 2026, 12:29 PM

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Selling my Omega Speedmaster Professional Moonwatch Hesalite 311.33.42.30 with big box asking $3999 CONUS + shipping

Omega - Speedmaster Professional Moonwatch Hesalite 311.33.42.30 · $3,999

Recently purchased Omega Speedmaster Professional Moonwatch Hesalite, in good condition, with a beautifully repaired leather strap. The watch runs well and keeps time accurately.

Condition: good condition, minor damage on leather strap
Leather strap condition: minor damage with visible repair
Strap included: no

Posted at

Feb 4, 2026, 12:26 PM

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Omega Speedmaster ref. 310.30.42.50.1.001. Super nice condition, watch only. Fully linked and running perfectly. $4900 shipped conus.

Omega - 310.30.42.50.1.001 · $4,900

A well-maintained Omega Speedmaster in excellent working order, fully linked.

Condition: super nice condition, watch only

Posted at

Feb 3, 2026, 10:29 PM

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Omega Speedmaster Professional MOONPHASE! - 3575.20 - $3,999 Shipped!

Omega - 3575.20 · $3,999

A Omega Speedmaster Professional with a moonphase function is being sold.

Model type: Speedmaster Professional
Functionality: Moonphase

Posted at

Feb 3, 2026, 8:32 PM

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Omega Speedmaster Reduced Black Mother of Pearl - Full Serviced! - $2,999 Shipped!

Omega - Speedmaster Reduced · $2,999

This Omega Speedmaster Reduced Black Mother of Pearl is a watch that features a unique mother-of-pearl dial. It has been fully serviced.

Serviced: true

Posted at

Feb 3, 2026, 8:13 PM

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Omega Speedmaster 3520.50 Triple Calendar Mk40 Cosmos - Box & Paper - $1999 SHIPPED

Omega - 3520.50 · $1,999

This Omega Speedmaster Triple Calendar Mk40 Cosmos features a 39mm case size, black dial, and bezel, powered by the Omega 1151 Caliber. It has a day, date, and month function.

Condition: Fair user condition
Case size: 39mm
Lug-to-lug: 44.75mm
Bracelet size: fits up to 6.75"

Posted at

Feb 3, 2026, 6:46 PM

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

Omega - 145.022-69 · $5,425

This Omega Speedmaster Moonwatch presents beautifully in full steel, showcasing a strong and sharp case with thick lugs that retain their original shape. The step dial displays a warm yellow patina across the hour markers and matching hands, creating a cohesive vintage appeal. The tritium lume remains reactive under UV light.

Condition: Serviced, lightly polished case
Size: 42mm diameter
Year: 1969
Movement: 861 caliber, professionally serviced

Posted at

Feb 3, 2026, 5:56 PM

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