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.

Buy Now on Jomashop

This is an affiliate link

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

Omega Speedmaster Moonphase 304.33.44.52.01.001

Omega - 304.33.44.52.01.001 · $7,575

The Omega Speedmaster Moonphase features a deep black sunburst dial with subdial complications, suitable for both casual and business wear. The watch is comfortable to wear, despite its 44mm case diameter. It comes as a full set with warranty card dated 2021.

Condition: like new
Case material: stainless steel
Case diameter: 44.25 mm
Movement: Omega Co-Axial Master Chronometer Cal. 9904

Posted at

Feb 2, 2026, 8:42 AM

Active

View listing on r/WatchExchange

2026 NEW/UNWORN Omega Speedmaster “FOIS” 39.7MM B&P 310.30.40.50.06.001

Omega - 310.30.40.50.06.001 · $7,800

A brand new, unworn Omega Speedmaster 'FOIS' reference 310.30.40.50.06.001, measuring 39.7mm in diameter.

Condition: New/Unworn
Case Size: 39.7mm
Movement: B&P (Breguet overcoil)

Posted at

Feb 1, 2026, 7:56 PM

Active

View listing on r/WatchExchange

Omega Speedmaster "First Omega in Space" (FOIS) w/ Box & Papers

Omega - 310.30.40.50.06.001 · $6,999

A Omega Speedmaster 'First Omega in Space' watch with original box and papers.

Condition: Very good condition, some light signs of wear
Year Of Purchase: 2025
Box And Papers Included: Yes

Posted at

Feb 1, 2026, 6:49 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers!

Omega - 329.30.44.51.01.001 · $5,995

This Omega Speedmaster Racing Chronograph is a pre-owned timepiece in good condition, featuring a 44.25mm diameter case and a stainless steel bracelet.

Condition: Pre-owned with minor wear
Case Size: 44.25mm
Bracelet Material: stainless steel

Posted at

Feb 1, 2026, 5:51 PM

Active

View listing on r/WatchExchange

2025 Omega Speedmaster Racing 44mm - 329.32.44.51.01.001 - Price Reduced!

Omega - 329.32.44.51.01.001 · $6,195

This Omega Speedmaster Racing Co-Axial Master Chronometer Chronograph features a modern Caliber 9900 movement and bold orange racing accents.

Condition: Fantastic preowned condition, barely worn
Strap material: black micro-perforated leather with orange rubber lining
Movement type: Caliber 9900 Master Chronometer, Co-Axial, anti-magnetic, column-wheel chronograph
Power reserve: approximately 60-hour

Posted at

Feb 1, 2026, 5:02 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional White Dial 42mm

Omega - 310.30.42.50.04.001 · $7,250

For sale is a 42MM Omega Speedmaster Professional White - Ref 310.30.42.50.04.001, complete with presentation box, booklets, Meta Chronometer card, pictogram certificate card, and warranty card.

Condition: preowned, fantastic condition with desk marks on the bracelet/clasp
Case size: 42mm diameter
Water resistance: no specified value
Box and papers: yes, included

Posted at

Feb 1, 2026, 4:58 PM

Active

View listing on r/WatchExchange

Omega Speedmaster “Silver Snoopy Award” 50th Anniversary Ref. 310.32.42.50.02.001 | 2025 | Brand New | Full Set

Omega - 310.32.42.50.02.001 · $14,959

The Omega Speedmaster Silver Snoopy Award 50th Anniversary is a highly collectible modern Speedmaster celebrating NASA's Silver Snoopy Award and Omega's pivotal role in space exploration.

Condition: Brand new, unworn
Year: 2025
Case Size: 42mm
Movement Type: manual wind

Posted at

Feb 1, 2026, 4:14 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Two Counters Chronograph 44mm – BOX & PAPERS – 311.90.44.51.03.001

Omega - 311.90.44.51.03.001

The Omega Speedmaster Two Counters Chronograph is a 44mm watch with a chronograph function.

Posted at

Feb 1, 2026, 3:58 PM

Active

View listing on r/WatchExchange

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000

The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 watch commemorates the 50th anniversary of the Apollo 8 mission, featuring a black ceramic case and laser-ablated dial to represent the lunar surface. It has a Calibre 1869 movement with blackened bridges and mainplate.

Condition: UNWORN
Case material: black ceramic
Case size: 44.25mm
Movement: Calibre 1869

Posted at

Feb 1, 2026, 1:57 PM

Active

View listing on r/WatchExchange