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.
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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 Moonwatch Professional - 311.30.42.30.01.006 - 42mm - Big Box - Full Set

Omega Speedmaster Moonwatch Professional - 311.30.42.30.01.006 - 42mm - Big Box - Full Set

Up for sale is an Omega Speedmaster Moonwatch Professional - 42mm - Big Box - Full Set Watch functions perfectly mechanically, without issue.

  • Condition: Fantastic condition with minor hairlines on bracelet, clasp, and case
  • Case size: 42mm
  • Bracelet condition: minor hairlines
Posted at
Mar 14, 2026, 12:02 PM
Active
[WTS][US] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

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

A Omega Speedmaster Grey Side Of The Moon, featuring a grey dial and 44mm size.

  • Condition: great condition, small chip on edge of case back
  • Case Size: 44mm diameter
Posted at
Mar 14, 2026, 11:34 AM
Active
[WTS] Omega Speedmaster Professional 3861 Link - $50

Omega Speedmaster Professional 3861 Link - $50

Sealed and unopened OEM genuine Omega Speedmaster 3861 Professional replacement link, pin, and collar set received directly from an Omega Boutique.

  • Origin: directly from Omega Boutique
  • Shipping: free to CONUS with PayPal Friends+Family
Posted at
Mar 14, 2026, 9:21 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! 🔥$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 is a 44.25mm masterpiece crafted from black ceramic, commemorating the 50th anniversary of the Apollo 8 mission.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869
Posted at
Mar 13, 2026, 8:27 PM
Active
[WTS] OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,000🔥

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,000🔥

OMEGA - 311.30.40.30.01.001 · $16,000
A faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk, featuring a stainless steel timepiece with a black ceramic bezel and column-wheel chronograph movement.

  • Condition: UNWORN
  • Movement: Calibre 321
  • Diameter: 39.7mm
  • Case material: stainless steel
Posted at
Mar 13, 2026, 8:17 PM
Active
[WTS] Omega Speedmaster Professional “Reverse Panda” 42MM - Ref 310.30.42.50.01.004 (NEW / UNWORN 2026 COMPLETE SET)

Omega Speedmaster Professional “Reverse Panda” 42MM - Ref 310.30.42.50.01.004 (NEW / UNWORN 2026 COMPLETE SET)

Omega - 310.30.42.50.01.004 · $10,800
For sale is a 42MM Omega Speedmaster Professional ‘Reverse Panda’, in true new condition, with all original packaging and documentation.

  • Condition: new, unworn, unsized
  • Warranty date: 03/12/2026
  • Included items: outer sleeve, outer box, inner box, cards, manuals, AD shipping coffin, serialized hangtag, UPC sticker, microfiber, travel case
Posted at
Mar 13, 2026, 3:59 PM
Active
[WTS] Omega Speedmaster Racing 40mm Blue Dial – Full Set – $2,950

Omega Speedmaster Racing 40mm Blue Dial – Full Set – $2,950

Up for sale is my Omega Speedmaster Racing with the blue dial and black textured sub-dials, featuring a 40mm automatic chronograph powered by the Omega Co-Axial Caliber 3330.

  • Condition: Very good pre-owned condition
  • Case size: 40mm diameter
  • Strap: Aftermarket strap and original Omega stainless steel bracelet included
Posted at
Mar 13, 2026, 3:44 PM
Active
[WTS] Omega Speedmaster Racing 329.30.44.51.04.001 COMPLETE SET 2024

Omega Speedmaster Racing 329.30.44.51.04.001 COMPLETE SET 2024

This Omega Speedmaster Racing features a white dial and comes in its complete set, including double boxed packaging and all relevant documentation.

  • Condition: Excellent
  • Payment Methods Accepted: cryptocurrency, local meetups, other methods
  • Trades Allowed: yes, only for brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
  • Location: southwest FL
Posted at
Mar 13, 2026, 2:18 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Excellent Condition + Serialized Hand Tag

Omega Speedmaster Reduced 3510.50 Excellent Condition + Serialized Hand Tag

Omega - 3510.50 · $2,650
This Omega Speedmaster Reduced is in excellent condition with hardly any signs of wear for its age, and it comes with a serialized hand tag.

  • Condition: Excellent
  • Serial number included: yes, with serialized hand tag
  • Payment methods accepted: cash, crypto (with fee), other payment methods
  • Trade options: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Mar 13, 2026, 2:13 PM
Active