Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

Reference 310.30.42.50.01.003

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a piece of history wrapped around your wrist, with its rich lineage and modern upgrades capturing the hearts of watch enthusiasts and collectors alike. This manual-winding chronograph movement features a co-axial escapement and silicon balance spring, making it resistant to magnetic fields up to 15,000 gauss. The plexi glass provides a warm, vintage feel that many collectors adore, while the stainless steel case measures 42mm in diameter and has a water resistance of 50 meters. This timepiece is perfect for everyday wear, suitable for both formal and casual occasions. With its stunning design, robust movement, and versatility, it's a celebration of heritage, precision, and style.

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Key Features

Omega Caliber 3861 Movement
Plexi Glass with Vintage Feel
42mm Stainless Steel Case
50m Water Resistance
Manual-Winding Chronograph Function
Co-Axial Escapement and Silicon Balance Spring

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

Reference

310.30.42.50.01.003

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Plexi

Water Resistance

Current Listings

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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