Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel - Moonshine Gold / Silver

Reference 310.20.42.50.02.001

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel - Moonshine Gold / Silver

About this watch

The Omega Speedmaster Professional Moonwatch 310.20.42.50.02.001 is a stunning blend of classic design and cutting-edge technology, featuring a stainless steel case, Moonshine gold accents, and sophisticated chronograph functionality. At the heart of this timepiece is the Omega caliber 3861 movement, certified as a Master Chronometer by METAS and boasting advanced features like a co-axial escapement, silicon balance spring, and magnetic resistance of up to 15,000 gauss. The Speedmaster's ergonomic design ensures it sits comfortably on the wrist, while its 50-meter water resistance makes it practical for daily wear. This watch is incredibly versatile, adapting effortlessly from formal events to casual days out, and its durability is ensured by top-notch materials like ceramic, stainless steel, and Moonshine gold. With a price point that reflects its quality and heritage, the Omega Speedmaster Professional Moonwatch 3861 is an investment in horological history.

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Key Features

Omega caliber 3861 movement with co-axial escapement and silicon balance spring
50-meter water resistance for everyday wear
Chronograph functionality with precise timing and intuitive layout
Moonshine gold accents and stainless steel case for luxurious appearance
Sapphire glass for scratch-resistance and durability
Master Chronometer certification by METAS for high accuracy and reliability

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Stainless Steel - Moonshine Gold / Silver

Reference

310.20.42.50.02.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

42mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

Current Listings

Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $9,850

This Omega Speedmaster Ed White Ref. 105.003-65 is an original and period correct watch from 1965, featuring a stunning brown tropical dial with rich patina.

Condition: Very good condition
Case size: 39mm diameter
Year: 1965
Dial type: Tropical dial

Posted at

Feb 1, 2026, 11:14 AM

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Omega Speedmaster Dark Side of the Moon "Vintage"

Omega - 311.92.44.51.01.006 · $6,700

This Omega Speedmaster Dark Side of the Moon Vintage Edition is a rare and no longer made version that features a black ceramic case.

Condition: nearly perfect
Movement Accuracy: +0s/day
Case Dimensions: 44mm diameter, 49mm lug-to-lug
Watch Weight: 99 grams

Posted at

Feb 1, 2026, 9:54 AM

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Omega Speedmaster Schumacher MK40 Cartoon Ref : 3520.53.00 Condition Good Price : 3100$

Omega - 3520.53.00 · $3,100

This Omega Speedmaster Schumacher MK40 is a 39mm grey dial watch featuring the caliber 1151 movement.

Condition: Good
Size: 39mm case diameter
Dial Color: grey

Posted at

Jan 31, 2026, 10:23 PM

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Omega Speedmaster Professional, White Lacquer Dial - Full Set - $7200

Omega - 310.30.42.50.05.001 · $7,200

This Omega Speedmaster Professional features a white lacquer dial and is accompanied by a full set of accessories.

Condition: 10/10, brand new in box (BNIB)
Movement: Master Chronometer Omega Cal. 3861
Case size: 42mm

Posted at

Jan 31, 2026, 8:00 PM

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Omega Speedmaster $1800

Omega - Speedmaster · $1,800

A Speedmaster watch is being sold for $1800. The watch is a well-known model from Omega. It ships only in the US, implying it may not be available internationally.

Shipping restrictions: ships only in the US

Posted at

Jan 31, 2026, 7:09 PM

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2024 Omega Speedmaster 38 Orbis Edition 324.30.38.50.03.002 Full Set Excellent

Omega - 324.30.38.50.03.002 · $4,995

This 2024 Omega Speedmaster 38 Orbis Edition features a unique blend of classic Speedmaster DNA and Omega's partnership with Orbis International.

Condition: Excellent
Year: 2024
Contents: Full Set

Posted at

Jan 31, 2026, 2:17 PM

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#FIRESALE 🔥# Omega Speedmaster. 39mm. White Ceramic. Very nice. $2895 Only...

Omega - Speedmaster · $2,895

A Omega Speedmaster in white ceramic with strong lume is being sold for $2895.

Size: 39mm diameter
Material: White Ceramic

Posted at

Jan 31, 2026, 11:15 AM

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[US] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega - 311.93.44.51.99.001 · $7,750

This Omega Speedmaster features a grey dial and is housed in a 44mm case. It functions perfectly mechanically and includes various accessories.

Condition: Great condition, small chip on edge of case back
Case size: 44mm diameter

Posted at

Jan 31, 2026, 10:49 AM

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[US] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

Omega - 310.30.42.50.04.001 · $7,750

This Omega Speedmaster Moonwatch Professional features a white dial and comes with a full set of accessories.

Condition: Fantastic condition
Box Set: yes, includes inner, outer, & removable travel case
Accessories: historical booklet, user manual, microfiber cloth, purchase receipt, serialized case back sticker, pictogram card, master chronometer card, warranty card (dated 03/2024)
Clasp Condition: minor hairlines

Posted at

Jan 31, 2026, 10:31 AM

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