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 BSOM Moonphase 304.93.44.52.03.002 (2021) | Complete Box & Papers | $10,999 Shipped

Omega Speedmaster BSOM Moonphase 304.93.44.52.03.002 (2021) | Complete Box & Papers | $10,999 Shipped

Omega - 304.93.44.52.03.002 · $10,999
The Omega Speedmaster “Blue Side of the Moon” (2021) is a stunning and underrated modern Speedmaster variant, crafted entirely from blue ceramic with a rich blue dial and Sedna gold accents.

  • Condition: amazing condition overall
  • Year: 2021
  • Material: blue ceramic
  • Movement: running strong and keeps excellent time
Posted at
Oct 18, 2025, 10:41 PM
Active
[WTS] Omega Speedmaster Moonphase

Omega Speedmaster Moonphase

Omega - 3575.20 · $5,250
Up for sale is an Omega Speedmaster Moonphase ref. 3575.20, which runs great and comes with full kit and documentation.

  • Condition: excellent
  • Warranty card included: true
  • Shipping limited to conus: true
Posted at
Oct 18, 2025, 10:24 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 – Full Kit – Excellent Condition – $5,900

Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 – Full Kit – Excellent Condition – $5,900

This Omega Speedmaster Professional Moonwatch is a highly sought-after model, known for its robust design and iconic status.

  • Condition: Excellent Condition
  • Movement: Automatic movement
Posted at
Oct 18, 2025, 10:53 AM
Active
[wts] Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001 under warranty

Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001 under warranty

This is a Omega Speedmaster racing watch, model 9900, featuring a 44.25mm case size and a factory warranty until OCT 2024.

  • Condition: Good condition
  • Case size: 44.25mm
  • Warranty: Factory warranty until OCT 2024
Posted at
Oct 17, 2025, 9:19 PM
Active

2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

  • Condition: Minty fresh
  • Case size: 42mm
  • Year: 2022
  • Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Posted at
Apr 7, 2025, 2:59 PM
Active
Omega Speedmaster Chronograph  - Blue - Stainless Steel - 38mm - Mint

Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint

This Omega Speedmaster Chronograph features a 38mm stainless steel case, blue dial, and automatic movement.

  • Condition: Pre-Owned - Mint
  • Case size: 38mm diameter
  • Bracelet type: Stainless Steel
  • Dial color: Blue
Posted at
Apr 5, 2025, 6:13 PM
Active
Omega Speedmaster 321 Ed White

Omega Speedmaster 321 Ed White

This Omega Speedmaster 321 Ed White is an original purchase from a US OB in 2023, worn sparingly since.

  • Condition: Good condition with minor scuffs
  • Warranty: includes warranty cards
  • Links: all links included
Posted at
Apr 4, 2025, 6:34 PM
Active
2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPER

2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPER

Omega - 310.32.42.50.02.001 · $16,200
This is a 2023 Omega Speedmaster �SNOOPY� 50th Anniversary model, one of the most exclusive pieces in the watch world. It features a stainless steel case with a silver dial and comes with an OEM Omega stainless steel bracelet.

  • Condition: Excellent pre-owned
  • Case diameter: 42mm
  • Water resistance: 50m depth rating
  • Movement type: Manual
Posted at
Apr 4, 2025, 3:06 PM
Active
Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)

This Omega Speedmaster Moonwatch Professional features a 42mm stainless steel case and is powered by the 3861 Omega Master Chronometer Movement.

  • Condition: Brand new
  • Case size: 42mm
  • Movement type: 3861 Omega Master Chronometer
Posted at
Apr 4, 2025, 2:52 PM
Active