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.
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 Automatic Schumacher Ref. 3810.61.41 - $2950

Omega Speedmaster Automatic Schumacher Ref. 3810.61.41 - $2950

Omega - 3810.61.41 · $2,950
This Omega Speedmaster Automatic Schumacher features a sleek design and is accompanied by a new aftermarket strap.

  • Condition: Pre-owned with minor scratches on the bracelet
  • Bracelet condition: minor hairline scratches consistent with wear
  • Straps included: 1 new aftermarket strap, 1 original bracelet
  • Shipping: $2950 includes Fedex overnight shipping within the US
Posted at
Jan 29, 2026, 12:00 PM
Active
[WTS] Omega Speedmaster Racing 326.30.40.50.02.001

Omega Speedmaster Racing 326.30.40.50.02.001

This is the Omega Speedmaster Racing with a silver dial, featuring a 40mm automatic chronograph and co-axial movement. It's a sporty watch that's also very wearable.

  • Condition: excellent preowned condition
  • Case size: 40mm diameter
  • Movement: co-axial movement
Posted at
Jan 29, 2026, 11:48 AM
Active
[WTS] Omega Speedmaster  moonwatch professional

Omega Speedmaster moonwatch professional

This is a 2023 Omega Speedmaster Professional Moonwatch featuring a 42mm stainless steel case, manual-winding Co-Axial Master Chronometer Calibre 3861, and a Sapphire Crystal.

  • Condition: Excellent
  • Case size: 42 mm
  • Material: stainless steel
  • Movement type: manual winding
Posted at
Jan 29, 2026, 7:38 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch – Sapphire Sandwich – Full Set

Omega Speedmaster Professional Moonwatch – Sapphire Sandwich – Full Set

The Omega Speedmaster Professional Moonwatch, reference 310.30.42.50.01.002, is a modern take on the classic design featuring a sapphire crystal and caseback.

  • Condition: Excellent with minor signs of wear
  • Movement: Manual-wind Cal. 3861 (METAS Master Chronometer)
  • Case size: 42mm
  • Water resistance: 50m
Posted at
Jan 28, 2026, 9:31 PM
Active
[WTS] Omega Speedmaster Reduced 39mm Serviced ⏱

Omega Speedmaster Reduced 39mm Serviced ⏱

  • Condition: Pre-owned, serviced
  • Case Size: 39mm diameter
  • Lug To Lug: 45mm length
  • Lug Width: 18mm width
Posted at
Jan 28, 2026, 9:30 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)

Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)

Omega - 145.022-69 · $4,995
This Omega Speedmaster Moonwatch features a step dial and yellow patina, showcasing visible signs of use that add character.

  • Condition: Very nice overall condition, with honest wear consistent with age
  • Size: 42mm diameter
  • Year: 1969
  • Case condition: Visible signs of use that add character
Posted at
Jan 28, 2026, 9:24 PM
Active
[WTS] Omega Speedmaster Reduced

Omega Speedmaster Reduced

Omega - 3510.50 · $2,500
Selling my Omega Speedy Reduced, a 39mm case size watch with a bracelet that fits about an 18cm wrist.

  • Case Size: 39mm diameter
  • Wrist Fit: fits about 18cm wrist
Posted at
Jan 28, 2026, 8:21 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch 3573.50

Omega Speedmaster Professional Moonwatch 3573.50

Omega - 3573.50 · $4,350
For sale is an Omega Speedmaster Professional Moonwatch reference 3573.50, this watch is in excellent condition with hardly any signs of wear.

  • Condition: Excellent
  • Payment Methods Accepted: crypto, other methods including a fee
  • Local Pickup Available: yes
  • Trade In Eligible Brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Jan 28, 2026, 2:23 PM
Active