Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Bracelet

Reference 310.60.42.50.01.001

Omega Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Bracelet

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold is a legendary timepiece that combines heritage, craftsmanship, and functionality in a way that few can match. Its stunning aesthetics, featuring a unique blend of black and gold, create a luxurious yet sporty vibe that can transition seamlessly from casual to formal settings. The watch strikes a balance between boldness and wearability, with a 42mm diameter and 13.18mm height that ensures it will never go out of style. Inside this beauty lies the Omega caliber 3861, an updated version of earlier calibers featuring a co-axial escapement and silicon balance spring. Certified by METAS, this watch is not just accurate but highly resistant to magnetic fields reaching up to 15,000 gauss. With a manual-winding chronograph movement and power reserve of 50 hours, you'll have the pleasure of winding it yourself while enjoying precise timekeeping. The black sunburst finish dial is mesmerizing, providing a backdrop for stick hands that lend a sleek, modern look while ensuring legibility at a glance. One of the standout features of the Speedmaster is its durability, with scratch-resistant sapphire glass and a water resistance rating of 50 meters. The open case back allows you to admire the intricate workings of the Omega caliber 3861, making it a treat for watch lovers.

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MSRP: $42,600

Market Price: $23,979

Key Features

Omega caliber 3861 movement
Sedna Gold case
Black sunburst finish dial
Scratch-resistant sapphire glass
50m water resistance
Manual-winding chronograph movement
Co-axial escapement and silicon balance spring

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Bracelet

Reference

310.60.42.50.01.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

Sedna Gold 42mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

Current Listings

OMEGA speedmaster marui limited model 3510.21.00 automatic

Omega - 3510.21.00

The watch being listed is an Omega Speedmaster Marui Limited Model 3510.21.00 automatic.

Posted at

Feb 5, 2026, 2:38 PM

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Omega Speedmaster Reference 311.30.42.30.01.005

Omega - 311.30.42.30.01.005 · $3,925

This Omega Speedmaster professional is a beautiful watch from 2019, complete with everything and in perfect condition.

Condition: perfect
Movement: manual winding
Size: 42mm diameter
Year: 2019

Posted at

Feb 5, 2026, 1:37 PM

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Omega Speedmaster 3520.53 Box, Manual, Card - $2,850 - Reserved post for u/subengineer

Omega - 3520.53 · $2,850

A Omega Speedmaster 3520.53 Full Kit is being sold in good condition with an automatic movement and a steel case.

Condition: Good condition with some usage marks and minimal oxidation
Case Size: 39mm diameter
Water Resistance: Not specified
Movement Type: Automatic

Posted at

Feb 5, 2026, 4:18 AM

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Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)

Omega - 145.022-69 · $4,995

This Omega Speedmaster Moonwatch ref. 145.022-69 is presented in all-original configuration and features a step dial with pronounced patina across all indices.

Condition: Very nice overall condition, with honest wear consistent with age
Size: 42mm diameter
Year: 1969
Movement Status: Professionally serviced in January 2026

Posted at

Feb 4, 2026, 10:26 PM

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2024 OMEGA SPEEDMASTER WHITE DIAL 310.30.42.50.04.001 $7399

OMEGA - 310.30.42.50.04.001 · $7,399

This is a 2024 OMEGA SPEEDMASTER with a white dial and various features such as a stainless steel case, sapphire crystal, and a 50-hour power reserve.

Condition: Pre Owned, Cosmetic Condition: 9/10
Case Material: STAINLESS/SAPPHIRE
Water Resistance: 50 METERS/165 FEET

Posted at

Feb 4, 2026, 9:40 PM

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Omega Speedmaster Reduced 39mm Serviced ⏱

Omega - Speedmaster Reduced · $2,250

This is a neo-vintage Omega Speedmaster Reduced, coming with an original Omega modern box set and manual. The watch features a 39mm case and has been accurately timekeeping after service.

Case Size: 39mm
Lug To Lug: 45mm
Lug Width: 18mm

Posted at

Feb 4, 2026, 9:18 PM

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2023 Omega Speedmaster Moonwatch 42mm Moonshine Gold Green 310.60.42.50.10.001 Full Set

Omega - 310.60.42.50.10.001 · $29,200

2023 Omega Speedmaster Moonwatch 42mm Moonshine Gold Green, a manual wind mechanical watch in very good condition.

Condition: Very nice preowned condition with some light scratches on the case and bracelet
Case Dimensions: 42mm diameter
Movement: Manual Wind, Mechanical
Original Purchase Date: September 2023

Posted at

Feb 4, 2026, 8:13 PM

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