Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet

Reference 310.55.42.50.13.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet is a masterpiece of horology, blending art, history, and cutting-edge technology. Crafted from Sedna Gold, this watch boasts a unique color that's both warm and striking. Its round shape and sunburst brown finish give it a luxurious feel, while the diamond-set bezel adds a touch of elegance. The 3861 is equipped with a chronograph feature, allowing you to measure elapsed time with precision. At its heart lies the Omega caliber 3861, an updated version of the legendary caliber 861/1861, featuring a co-axial escapement and silicon balance spring for accuracy and reliability. Master Chronometer certified by METAS, this watch has undergone rigorous testing to withstand magnetic fields of up to 15,000 gauss. Its sleek design and exceptional craftsmanship make it a standout in any collection. Whether you're at a formal event or a casual outing, this watch is sure to turn heads.

Buy Now on Jomashop

This is an affiliate link

Key Features

Sedna Gold case
Manual-winding chronograph movement
Co-axial escapement and silicon balance spring
Master Chronometer certified by METAS
Diamond-set bezel
Water resistance up to 50 meters
42.00 mm diameter and 13.18 mm height

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet

Reference

310.55.42.50.13.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

Sedna Gold 42mm

Dial Color

Brown

Crystal

Sapphire

Water Resistance

Current Listings

Omega Speedmaster 3590.50

Omega - 3590.50

Title: [WTS] Omega Speedmaster 3590.50

Posted at

Oct 17, 2025, 5:28 PM

Active

View listing on r/WatchExchange

Omega 1861 Speedmaster Bracelet and Forstner Flatlink Contemporary

Omega - 1861 Speedmaster Bracelet and Forstner Flatlink Contemporary · $480

A Omega 1861 Speedmaster, sold with a Forstner bracelet and an additional Forstner Flatlink Contemporary. The first has some wear on the clasp and links, while the second is in excellent condition.

Condition: Forstner bracelet (worn) - Speedmaster bracelet (excellent)
Shipping Cost Uk: 10
Shipping Cost International: 25

Posted at

Oct 17, 2025, 4:05 PM

Active

View listing on r/WatchExchange

New & Unworn 2025 Omega Speedmaster Professional Moonwatch ‘Silver Snoopy Award’ 50th 310.32.42.50.02.001 Complete

Omega - 310.32.42.50.02.001 · $15,950

The Omega Speedmaster Professional Moonwatch 'Silver Snoopy Award' is a limited edition watch celebrating the 50th anniversary of Omega's recognition from NASA astronauts for its role in the Apollo 13 mission. It features an animated caseback with a mesmerizing display of Snoopy piloting his Command and Service Module in lunar orbit.

Condition: Brand New
Year: 2025
Contents: Complete Collector Set with all the goodies

Posted at

Oct 17, 2025, 12:00 PM

Active

View listing on r/WatchExchange