Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire

Reference 310.32.42.50.04.002

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a masterful blend of style, history, and technical excellence. This watch embodies the essence of luxury with its sleek stainless steel case, striking white dial, and iconic design that transcends fashion trends. With its Master Chronometer certification, exceptional accuracy is guaranteed, while the manual winding movement adds a touch of personal connection to the wearer's wrist. The Speedmaster's rich history and association with NASA's Apollo missions make it a true icon in horology, connecting the wearer to a significant moment in human history. Whether you're a watch collector or simply someone who appreciates fine timepieces, this watch deserves a spot in your collection.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Master Chronometer Certified
  • Magnetic Resistance up to 15,000 gauss
  • Manual-Winding Chronograph Movement
  • Free-Sprung Balance with Silicon Balance Spring
  • 42.00 mm Diameter
  • 13.18 mm Height
  • 20.00 mm Lug Width

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire
Reference
310.32.42.50.04.002
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Stainless Steel 42mm
Dial Color
White
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster « Broad Arrow » 3594.50

Omega Speedmaster « Broad Arrow » 3594.50

Omega - 3594.50 · $3,600
This Omega Speedmaster Broad Arrow is a highly collectible and historically inspired watch with iconic Broad Arrow hands. It has recently been serviced by a professional watchmaker in France and comes with a 1-year service warranty.

  • Condition: Excellent overall condition
  • Service: Recently serviced by a professional watchmaker in France
  • Warranty: 1-year service warranty from the professional who performed the revision
  • Bracelet: Original Omega bracelet included
Posted at
Jan 3, 2026, 10:20 AM
Active
[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!

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

OMEGA - 311.92.44.30.01.001 · $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 commemorates the 50th anniversary of the Apollo 8 mission, crafted from a single block of black ceramic with a sleek modern aesthetic and a technical artistic tribute to space exploration.

  • Condition: [UNWORN]
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869
Posted at
Jan 3, 2026, 6:21 AM
Active
[WTS] OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET!

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET!

OMEGA - 311.30.40.30.01.001 · $18,000
This OMEGA Speedmaster Calibre 321 Ref. 311.30.40.30.01.001 is a faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk.

  • Condition: UNWORN
  • Material: stainless steel
  • Movement: Calibre 321 column-wheel chronograph
  • Caseback: sapphire
Posted at
Jan 3, 2026, 3:15 AM
Active
[WTS] Omega Speedmaster Professional White Dial Full Set

Omega Speedmaster Professional White Dial Full Set

A Omega Speedmaster Professional with a white dial, sold on a flat link bracelet inspired by the original 1957 model.

  • Bracelet style: flat link bracelet
  • Bracelet origin: Omega Boutique at South Coast Plaza in Costa Mesa, CA
  • Clasp condition: some snail trails
Posted at
Jan 2, 2026, 2:12 PM
Active
[WTS] Omega Speedmaster Moonphase Blue - 304.33.44.52.03.001 - Box + Papers

Omega Speedmaster Moonphase Blue - 304.33.44.52.03.001 - Box + Papers

Gorgeous Omega Speedmaster Moonphase Blue, comes with box and papers and extra strap.

  • Condition: great shape with minor signs of wear
  • Case Wear: minor
  • Includes: box,papers,extra strap
Posted at
Jan 2, 2026, 1:40 PM
Active
[WTS] Omega Speedmaster 3520.53 Box, Manual, Card - $2,850

Omega Speedmaster 3520.53 Box, Manual, Card - $2,850

Omega - 3520.53 · $2,850
Up for sale is my Omega Speedmaster 3520.53 Full Kit, measuring 39mm with an automatic movement and a steel case on an original Omega Steel bracelet.

  • Condition: good condition with usage marks and some patina
  • Size: 39mm diameter
  • Case material: steel
  • Bracelet size range: fits up to 7 inch wrists with extra links available
Posted at
Jan 1, 2026, 8:33 PM
Active
[WTS] Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $10,995
This Omega Speedmaster Ed White Ref. 105.003-65 is a historic variant with a stunning brown tropical dial and matching tritium hands. It's one of the most collectible Speedmasters among enthusiasts due to its unique features and significance in Omega's history.

  • Condition: Very good condition, with signs of previous polish
  • Size: 39mm diameter
  • Year: 1965
  • Movement serviced: Yes, professionally serviced in July 2023
Posted at
Jan 1, 2026, 7:41 PM
Active
[WTS] Omega Speedmaster Pro Moon Watch 3570.50 W/1498/840 Bracelet (Watch Only) $3800

Omega Speedmaster Pro Moon Watch 3570.50 W/1498/840 Bracelet (Watch Only) $3800

OMEGA - 3570.50 · $3,800
This Omega Speedmaster Pro Moon Watch is being sold in pre-owned condition, with some marks on the hesalite crystal.

  • Condition: PRE-OWNED
  • Case size: 42MM
  • Box: NO
  • Card/papers: NO
Posted at
Jan 1, 2026, 7:11 PM
Active
[WTS] Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set

Omega Speedmaster Professional 42mm “Sapphire Sandwich” 310.30.42.50.01.002 - 11/2025 Complete Set

This is a brand new Omega Speedmaster Professional 'Sapphire Sandwich' 42mm watch, coming with a complete set including the watch itself, 11/2025 card, triple-boxed packaging, serial tag, manual, and Master Chronometer certification.

  • Condition: Like New
  • Case size: 42mm
  • Depth rating: 30m
  • Service history: Unknown
Posted at
Jan 1, 2026, 3:14 PM
Active