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 Reduced - 39mm Two Tone - Ref 175.0033 - Price Reduced!

Omega - 175.0033 · $2,750

This is a Beautiful Omega Speedmaster Reduced, reference number 175.0033. The watch is running and all the functions are working as they should.

Condition: Great vintage condition, light hairlines on bezel and case
Case size: 39mm diameter
Strap type: high quality leather strap from Casanova

Posted at

Feb 3, 2026, 1:21 PM

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2025 Omega Speedmaster ’57 Sedna Gold Two-Tone 41.5mm 331.22.42.51.01.001 Full Set Like New

Omega - 331.22.42.51.01.001 · $8,750

A vintage-inspired Speedmaster with a modern Master Co-Axial movement, featuring an 18K Sedna gold case and black dial.

Condition: Mint
Case material: 18K Sedna gold
Diameter: 41.5mm

Posted at

Feb 3, 2026, 1:05 PM

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Omega Speedmaster Racing Master Chronometer 44.25mm 329.33.44.51.04.001 Full Set Mint

Omega - 329.33.44.51.04.001 · $8,950

A modern, motorsport-inspired take on the Speedmaster line.

Condition: Mint
Size: 44.25mm
Year: 2022

Posted at

Feb 3, 2026, 1:03 PM

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Omega Speedmaster Racing. 329.32.44.51.01.001, Full set.

Omega - 329.32.44.51.01.001 · $5,850

This is a 2021 Omega Speedmaster Racing with the reference number 329.32.44.51.01.001, sold as a full set including warranty card.

Year: 2021
Set: Full set
Warranty: Warranty card included

Posted at

Feb 3, 2026, 11:39 AM

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Omega Speedmaster Professional Snoopy 50th Anniversary Ref: 310.32.42.50.02.001 BNIB

Omega - 310.32.42.50.02.001 · $11,800

This is a 50th Anniversary Ref: 310.32.42.50.02.001 Omega Speedmaster Professional Snoopy that comes with the complete package and extra Omega travel box in red leather.

Condition: New, never worn (BNIB)
Warranty End Year: 2025
Box Contents: complete package and extra Omega travel box in red leather

Posted at

Feb 3, 2026, 9:46 AM

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2025 Omega Speedmaster Professional Moonwatch White Dial 310.30.42.50.04.001 Full Set

Omega - 310.30.42.50.04.001 · $7,800

Additional Details: Model: Speedmaster Professional Moonwatch Ref. 310.30.42.50.04.001, a manual wind Omega watch with a stainless steel case measuring 42mm in diameter.

Condition: Very nice preowned condition with some light scratches on the case and bracelet
Case material: Stainless Steel
Case dimensions: 42mm diameter
Bezel material: Stainless Steel

Posted at

Feb 2, 2026, 8:05 PM

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