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.
Buy Now on Jomashop
This is an affiliate link

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 Sapphire Sandwich. Box, Papers. Microadjust Clasp. 310.30.42.50.01.002.

Omega Speedmaster Sapphire Sandwich. Box, Papers. Microadjust Clasp. 310.30.42.50.01.002.

Omega - 310.30.42.50.01.002 · $6,450
For sale is an Omega Speedmaster Sapphire Sandwich, featuring a microadjust clasp and accompanied by its box and papers.

  • Box included: true
Posted at
Apr 4, 2026, 4:18 PM
Active
View listing on r/WatchExchange
[WTS] Forstner Contemporary Flat Link Bracelet for Omega Speedmaster (Pre-2021)

Forstner Contemporary Flat Link Bracelet for Omega Speedmaster (Pre-2021)

Omega - Speedmaster (Pre-2021) · $60
This Omega Speedmaster watch has been paired with a Forstner Contemporary Flat Link Bracelet.

  • Condition: good
  • Wrist Size: up to 7.25"
  • Links Missing: 1-2
Posted at
Apr 4, 2026, 4:17 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster FOIS 311.32.40.30.01.001 – Excellent Condition

Omega Speedmaster FOIS 311.32.40.30.01.001 – Excellent Condition

Omega - 311.32.40.30.01.001 · $3,999
This Omega Speedmaster First Omega in Space is a highly collectible modern Speedmaster, inspired by the CK2998 worn by astronaut Wally Schirra during the Mercury-Atlas 8 mission. The watch has a classic straight-lug asymmetric-free FOIS case and features a stunning black stepped dial with alpha hands and vintage-inspired details.

  • Condition: Excellent
  • Case Size: 39.7mm
  • Movement: Omega Caliber 1861 manual wind
  • Crystal: Saphire
Posted at
Apr 4, 2026, 4:11 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050
This Omega Speedmaster Professional Moonwatch reference 145.022-78 is presented in all-original condition and remains in very good overall shape. The watch is fitted with its original, period-correct black tritium dial, displaying an even yellow patina across all hour markers that adds warmth and character.

  • Condition: Very good overall shape, original condition
  • Case size: 42mm
  • Year of manufacture: 1978
Posted at
Apr 4, 2026, 3:19 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional (310.30.42.50.04.001)

Omega Speedmaster Professional (310.30.42.50.04.001)

Omega - 310.30.42.50.04.001 · $7,550
This Omega Speedmaster Professional features a white dial on a stainless steel bracelet and comes with boxes, booklet, and warranty card dated 8/19/2025.

  • Condition: Excellent
  • Case size: 42mm diameter
  • Bracelet material: Stainless Steel
  • Crystal type: Sapphire
Posted at
Apr 4, 2026, 2:12 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🤎

Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🤎

Omega - 145.022-69 · $14,995
A rare and fully original Omega Speedmaster Moonwatch with a stunning tropical brown dial and heavy patina, featuring a period-correct super tropical brown dial and a deep, even transformation with yellow patina across all indices and matching hands.

  • Condition: Beautiful condition with heavy patina, professionally serviced in November 2025
  • Size: 42mm diameter
  • Year: 1969
Posted at
Apr 4, 2026, 1:14 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 40mm | Great Condition (With Box & Serviced) | $2450

Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 40mm | Great Condition (With Box & Serviced) | $2450

Omega - 3221.30.00 · $2,450
The Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 is a feature-packed take on the classic Speedmaster, with a stainless steel case and sapphire crystal, rated to 100m water resistance.

  • Condition: Great condition
  • Case size: 40mm diameter
  • Thickness: 15mm
  • Movement: Caliber 3606 automatic chronograph movement with approximately 44 hours of power reserve and COSC-certification
Posted at
Apr 3, 2026, 11:06 PM
Active
View listing on r/WatchExchange
[WTS] 2019 Omega Speedmaster (FOIS) - 311.32.40.30.01.001 - Box and Papers - $4,295 Shipped ✈️

2019 Omega Speedmaster (FOIS) - 311.32.40.30.01.001 - Box and Papers - $4,295 Shipped ✈️

Omega - 311.32.40.30.01.001 · $4,295
This is the Omega Speedmaster ‘First Omega in Space’ (FOIS) model, a highly sought-after favorite among collectors, featuring a classic straight-lug case and vintage-inspired design.

  • Condition: Fantastic pre-owned condition with minimal wear
  • Size: 39.7mm diameter
  • Case type: Straight-lug case
Posted at
Apr 3, 2026, 9:41 PM
Active
View listing on r/WatchExchange
[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 Ref. 311.92.44.30.01.001 commemorates the 50th anniversary of the Apollo 8 mission, the first to orbit the moon. This 44.25mm masterpiece is crafted from a single block of black ceramic, offering unparalleled scratch resistance and a sleek, modern aesthetic.

  • Condition: UNWORN
  • Case material: black ceramic
  • Case size: 44.25mm
  • Dial design: skeletonized and laser-ablated
Posted at
Apr 3, 2026, 8:59 PM
Active
View listing on r/WatchExchange