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

[WTS] Omega Speedmaster Broad Arrow Olympics 2012 – Gloss White Porcelain-Like Dial • Heat-Blued Hands • Cal. 3313 Co-Axial Column-Wheel Automatic Chrono • Rubber B Croc SwimSkin Strap - $2,600 Shipped CONUS

Omega Speedmaster Broad Arrow Olympics 2012 – Gloss White Porcelain-Like Dial • Heat-Blued Hands • Cal. 3313 Co-Axial Column-Wheel Automatic Chrono • Rubber B Croc SwimSkin Strap - $2,600 Shipped CONUS

Omega - Speedmaster Broad Arrow Olympics 2012 · $2,600

The Omega Speedmaster Broad Arrow Olympics 2012 features a gloss white, porcelain-like dial with sunken subdials and heat-blued hands. It has a classic, beautiful design and is extremely refined.

Condition: Excellent, recently pressure-tested
Case Dimensions: case dimensions and proportions are extremely close to a Moonwatch
Movement: Omega Caliber 3313, column-wheel, Co-Axial chronograph movement
Straps: Rubber B Crocodile SwimSkin strap, retails for over $300

Posted at

Dec 6, 2025, 3:34 PM

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2025 Omega Speedmaster Moonwatch Professional White Dial Full 5/25 Ref: 310.30.42.50.04.001 $7,399.00

Omega - 310.30.42.50.04.001 · $7,399

2025 Omega Speedmaster Moonwatch Professional White Dial, manual wind, 42mm size with domed sapphire crystal and case back, 50M water resistance, 3861 movement.

Condition: 9/10, with a few superficial hairlines and one on the clasp
Case material: Stainless Steel (SS)
Bracelet material: Stainless Steel (SS)
Bracelet type: Quick Adjust Clasp

Posted at

Dec 6, 2025, 2:28 PM

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Omega Speedmaster Moonphase — 2022 Full Set + Extras — $7,750 OBO

Omega - 304.30.44.52.01.001 · $7,750

This Omega Speedmaster Moonphase is a Co-Axial Master Chronometer with Ref: 304.30.44.52.01.001, dated 2022. It's available as a full set with OEM extras.

Condition: Very Good
Year: 2022
Case condition: honest clasp wear

Posted at

Dec 6, 2025, 12:38 PM

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Omega Speedmaster Professional Moonwatch White ref. 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $7,450

This Omega Speedmaster Professional Moonwatch White features a manual wind 3861 caliber movement in a sapphire sandwich configuration, with a white lacquered dial inspired by vintage iterations.

Condition: Minimal signs of wear, super healthy on Timegrapher
Case size: 42mm diameter
Movement: Manual wind 3861 caliber movement
Crystal: Sapphire sandwich configuration with top crystal and exhibition caseback

Posted at

Dec 6, 2025, 10:50 AM

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2024 Omega Speedmaster Moonphase - Box and Papers

Omega - 304.33.44.52.03.001 · $6,950

2024 Omega Speedmaster Moonphase with blue sun-brushed dial and ceramic bezel, powered by OMG 9904 movement.

Condition: Really nice used condition with a few very light marks
Case size: 44.25mm
Movement power reserve: 60 hours

Posted at

Dec 6, 2025, 9:33 AM

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Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega - 311.92.44.30.01.001 · $7,850

This Omega Speedmaster Dark Side of the Moon features a full-ceramic case and buckle, sold with its box and papers.

Condition: Mint, like-new condition
Case material: full-ceramic
Year: 2019

Posted at

Dec 5, 2025, 9:10 PM

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Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition 311.10.39.30.01.001 - With accessories

Omega - 311.10.39.30.01.001 · $6,899

This listing features the Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition, a commemorative watch marking the brand’s iconic design.

Condition: Excellent pre-owned
Accessories: booklets, straps, strap changer, travel case, tag, Double box
Condition Detail: Undated card

Posted at

Dec 5, 2025, 7:02 PM

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