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

Reference 310.20.42.50.02.001

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
50

Current Listings

[WTS] Omega Speedmaster 323.10.40.40.04.001 Specialities 2012 Olympic Games Collection Blue Red Hands | Good Condition | Serviced| 2200$

Omega Speedmaster 323.10.40.40.04.001 Specialities 2012 Olympic Games Collection Blue Red Hands | Good Condition | Serviced| 2200$

The Omega Speedmaster 323.10.40.40.04.001 Specialities 2012 Olympic Games Collection features a white dial with red and blue hands, making it an eye-catching piece.

  • Condition: Good Condition
  • Case size: 39mm
  • Crystal type: Sapphire
  • Lug width: 20mm
Posted at
Mar 28, 2026, 11:17 AM
Active
[WTS] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

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

This Omega Speedmaster features a grey dial and measures 44mm in diameter.

  • Condition: Great condition, minor damage on edge of case back
  • Case size: 44mm
  • Diameter: 44mm
Posted at
Mar 28, 2026, 9:09 AM
Active
[WTS] Omega Speedmaster Sapphire White 🔥Brand New March 2026, $8500+✈️🔥

Omega Speedmaster Sapphire White 🔥Brand New March 2026, $8500+✈️🔥

This Omega Speedmaster Sapphire White is brand new and comes with a box, warranty, and manuals.

  • Condition: Brand New (Unsized, Unworned)
  • Shipping Fee Usa: $100
  • Payment Methods: Wire,Credit Card (+4.9%)
  • Location: Singapore
Posted at
Mar 27, 2026, 10:56 PM
Active
[WTS] Omega Speedmaster Hesalite 🌑Brand New March 2026, $6500+🚀 🌑

Omega Speedmaster Hesalite 🌑Brand New March 2026, $6500+🚀 🌑

This Omega Speedmaster Hesalite is a brand new watch from March 2026, complete with box and warranty.

  • Condition: Brand New (Unsized, Unworned, Wrapped)
  • Origin: Singapore
  • Shipping Notes: Watches will be shipped from Singapore Office. Tariffs/Duties to the USA handled from seller's end.
Posted at
Mar 27, 2026, 10:55 PM
Active
[WTS] OMEGA Speedmaster Reduced 39mm 3510.50

OMEGA Speedmaster Reduced 39mm 3510.50

OMEGA - 3510.50 · $2,850
Additional Details: Omega Speedmaster Reduced Ref. 3510.50, one of the most popular and wearable versions of the iconic Speedmaster line.

  • Condition: Mint condition, minimal to no signs of wear
  • Case size: 39mm diameter
  • Movement type: Automatic chronograph
Posted at
Mar 27, 2026, 10:38 PM
Active

OMEGA Speedmaster Reduced 39mm 3510.5

OMEGA - 3510.5 · $2,850
This Omega Speedmaster Reduced Ref. 3510.50 is one of the most popular and wearable versions of the iconic Speedmaster line, featuring a clean case, crystal, and bracelet.

  • Condition: Mint condition, minimal to no signs of wear
  • Case Size: 39mm
  • Movement: Automatic chronograph
Posted at
Mar 27, 2026, 10:00 PM
Active
[WTS] Omega Speedmaster Moonwatch (2025) Ref 310.30.42.50.01.002 | Full Set + Extras

Omega Speedmaster Moonwatch (2025) Ref 310.30.42.50.01.002 | Full Set + Extras

A new Omega Speedmaster Moonwatch featuring a black dial and stainless steel bracelet with a warranty until 2030.

  • Condition: Excellent overall condition
  • Case Condition: Very light signs of wear
  • Crystal Condition: No scratches or chips
  • Bracelet Links: Full links
Posted at
Mar 27, 2026, 9:39 PM
Active
[WTS] OMEGA Speedmaster 3861 METAS Sapphire Sandwich - 2021 (under Omega warranty until August) - Full Kit 310.30.42.50.01.002 - $6499 shipped CONUS

OMEGA Speedmaster 3861 METAS Sapphire Sandwich - 2021 (under Omega warranty until August) - Full Kit 310.30.42.50.01.002 - $6499 shipped CONUS

Up for sale is an excellent condition Omega Speedmaster Professional 3861 Sapphire Sandwich Moonwatch, Full Kit reference 310.30.42.50.01.002.

  • Condition: Excellent
  • Warranty Status: under warranty until August
  • Accuracy: +1 seconds per day
  • Bracelet Size: 7 ¾"
Posted at
Mar 27, 2026, 8:31 PM
Active
[WTS] Omega Speedmaster Reduced “Schumacher” – Yellow Dial $2,950

Omega Speedmaster Reduced “Schumacher” – Yellow Dial $2,950

A classic 90s racing piece with a yellow dial and tons of personality. It has an acrylic crystal, a strong movement, and some normal wear on the case.

  • Condition: good condition for its age with normal wear
  • Case size: varies
  • Crystal material: acrylic
  • Bracelet condition: great shape
Posted at
Mar 27, 2026, 8:05 PM
Active