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

Reference 310.30.42.50.04.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861, reference number 310.30.42.50.04.001, is a stunning timepiece that blends functionality with elegance. Designed for both everyday wear and special occasions, this watch boasts a rich history, a robust build, and a breathtaking aesthetic that easily draws attention. The pristine white dial exudes sophistication, while the stainless steel case measures 42 mm in diameter, striking the perfect balance between presence and wearability. The open case back showcases the intricate workings of the Caliber 3861 movement, highlighting the beauty of Swiss craftsmanship. This watch is more than just a timekeeper; it's a piece of history, a testament to Omega's commitment to precision and style.
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MSRP: $8,100
Market Price: $7,737

Key Features

  • Omega Caliber 3861 Movement
  • Master Chronometer Certification
  • Sapphire Crystal Glass
  • Tachymeter Bezel for Speed Measurement
  • Water Resistance up to 50 meters
  • Co-Axial Escapement for Improved Accuracy and Longevity
  • Manual-Winding Chronograph Movement with Power Reserve of 50 hours

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / White / Sapphire / Bracelet
Reference
310.30.42.50.04.001
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 Silver 40 Box Papers

Omega Speedmaster Silver 40 Box Papers

Omega - 3212.80.00 · $2,999
The Omega Speedmaster is a chronograph date watch with small seconds and tachymeter, featuring an iconic design.

  • Condition: Pre-Owned with minor scratches
  • Case Material: Steel
  • Bracelet Material: Bracelet
  • Dimensions: 40 mm diameter
Posted at
Mar 15, 2026, 1:05 PM
Active
[WTS] Omega Speedmaster. 39mm. Mother of Pearl Dial. Clean. OEM Strap/Deployant Clasp..

Omega Speedmaster. 39mm. Mother of Pearl Dial. Clean. OEM Strap/Deployant Clasp..

Omega - Speedmaster · $2,350
This Omega Speedmaster features a 39mm case and mother of pearl dial.

  • Condition: Clean
  • Case Size: 39mm
  • Strap Type: OEM Strap/Deployant Clasp
Posted at
Mar 15, 2026, 11:32 AM
Active
[WTS] 2022 Omega Speedmaster Moonwatch Professional – 310.30.42.50.01.001 - $5899 Shipped

2022 Omega Speedmaster Moonwatch Professional – 310.30.42.50.01.001 - $5899 Shipped

For sale is a 2022 Omega Speedmaster Moonwatch Professional in excellent condition, showing light signs of normal wear and running properly.

  • Condition: Excellent overall condition with light signs of normal wear only
  • Case size: 42mm
  • Movement type: Manual wind chronograph
  • Crystal material: Hesalite
Posted at
Mar 15, 2026, 2:41 AM
Active
[WTS] Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 1140 TRITIUM PATINA

Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 1140 TRITIUM PATINA

Omega - 175.0032 · $2,550
This Omega Speedmaster Reduced features a beautiful tritium patina on its dial, giving it an authentic vintage character.

  • Condition: Honest signs of use consistent with its age, scratches on case and bracelet
  • Movement: Omega Caliber 1140 Automatic (46 jewels)
  • Case Size: 39mm
  • Caseback: Solid Omega press on caseback
Posted at
Mar 15, 2026, 1:38 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch ref. 145.022 circa 1978

Omega Speedmaster Professional Moonwatch ref. 145.022 circa 1978

Omega - 145.022 · $4,400
A circa 1978 Omega Speedmaster Professional Moonwatch ref. 145.022, featuring a Lemania based caliber 861 movement, in a classic 42mm case.

  • Condition: Used, with wear and signs of polish
  • Movement: Lemania based caliber 861
  • Case size: 42mm diameter
  • Lug width: 20mm
Posted at
Mar 14, 2026, 8:50 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch White Dial Complete Set w/ Box, Papers and Warranty!

Omega Speedmaster Professional Moonwatch White Dial Complete Set w/ Box, Papers and Warranty!

  • Box: yes, with box and papers
  • Warranty: still under warranty
  • Dial: white dial
Posted at
Mar 14, 2026, 5:18 PM
Active
[WTS] Omega Speedmaster Moonwatch Sapphire 3861 - full kit bracelet plus leather

Omega Speedmaster Moonwatch Sapphire 3861 - full kit bracelet plus leather

Omega - 3861 · $6,490
A Omega Speedmaster Moonwatch Sapphire Sandwich sold as a full kit with both leather and bracelet included.

  • Condition: Great condition, with some marks on the back of the lugs from strap changes
  • Warranty: Joma shop warranty until Jan 2028
  • Strap: Omega leather strap
  • Bracelet Links: All links included
Posted at
Mar 14, 2026, 4:34 PM
Active
[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