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

Hruodland Quartz Chronograph- Vintage Omega Speedmaster TV Dial Homage

Omega - Speedmaster · $5,000

This watch is a vintage homage to the iconic Omega Speedmaster with a TV dial design, featuring quartz chronograph functionality.

Year: vintage

Posted at

Mar 9, 2026, 12:56 PM

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[WTT] Omega Speedmaster Moonwatch. White Dial. Bracelet. Full Kit. Ref. 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $7,500

A white dial Omega Speedmaster Professional Moonwatch on a steel bracelet, reference 310.30.42.50.04.001 is being sold with its full kit, including box, cards, and warranty.

Condition: Very good
Case size: 42mm diameter
Bracelet links included: yes
Box and cards included: yes

Posted at

Mar 9, 2026, 7:05 AM

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Omega Speedmaster Reduced 3510.50

Omega - 3510.50 · $2,800

A Omega Speedmaster Reduced 3510.50, a 39mm watch with hesalite crystal and dial lume with even cream coloring.

Condition: Pretty good condition considering the age with signs of light wear.
Case size: 39mm
Crystal material: hesalite

Posted at

Mar 9, 2026, 2:29 AM

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Omega Speedmaster Date ref. 3212.80.00 40mm | Great Condition (with Original Box & Serviced) | $2600

Omega - 3212.80.00 · $2,600

The Omega Speedmaster Date ref. 3212.80.00 features a 40mm stainless steel case, deep blue dial, and classic tri-compax layout with running seconds, 30-minute counter, and 12-hour chronograph totalizer.

Condition: Great condition
Case size: 40mm diameter
Bracelet length: 7.5-7.7 inches
Movement power reserve: 44 hours

Posted at

Mar 8, 2026, 10:58 PM

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Omega Speedmaster ’57 Gold on Leather Strap 2025 MINT FULL 331.22.42.51.01.001

Omega - 331.22.42.51.01.001 · $6,999

The Omega Speedmaster Co-Axial Chronograph is a luxurious everyday chronograph with serious pedigree, blending legendary heritage with refined execution.

Condition: Mint, minimal signs of wear
Case Size: 41.5 mm diameter
Thickness: 16.17 mm
Lug To Lug: 50 mm

Posted at

Mar 8, 2026, 10:36 PM

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Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal

Omega - 3570.50.00 · $3,999

Selling an Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal watch in good condition, with a full service at Omega AD in 2022 and original papers from the first owner.

Condition: good condition
Year of purchase: 2014
Bracelet condition: has scratches on clasp area due to typing on a laptop
Additional accessories: extra NATO strap

Posted at

Mar 8, 2026, 9:34 PM

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Omega Speedmaster METAS 3861 Sapphire Sandwich - Mint - 2023 (under Omega warranty until 2028) - Latest Version With Quick Adjust Clasp - Full Kit

Omega - 3861 · $6,900

This Omega Speedmaster Moonwatch is a full kit dated May 2023, under warranty until May 2028. It has some minor scratches on the clasp but runs flawlessly and is in great condition.

Condition: Mint with desk dive scratches on the clasp
Year of manufacture: 2023
Warranty expiration year: 2028
Case condition: Mint

Posted at

Mar 8, 2026, 8:54 PM

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