Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink / Alligator

Reference 310.23.42.50.99.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a masterpiece of horology that seamlessly blends heritage, luxury, and modern technology. Its stunning pink sunburst dial radiates warmth and elegance, while the Sedna gold accents harmonize beautifully with the stainless steel case. The chronograph function is easily accessible, making it practical for everyday use. At its heart beats the Omega Caliber 3861 movement, featuring a co-axial escapement and silicon balance spring. This timepiece is not just a watch; it's a statement of sophistication and style that pairs well with both formal and casual attire.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega Caliber 3861 movement
  • Sedna gold accents
  • Stainless steel case
  • Tachymeter bezel
  • Water resistance up to 50 meters
  • 42mm diameter
  • Co-axial escapement and silicon balance spring

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink / Alligator
Reference
310.23.42.50.99.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
42mm
Dial Color
Pink
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Broad Arrow - White Dial + Blued Hands - 42mm - 321.10.42.50.02.001

Omega Speedmaster Broad Arrow - White Dial + Blued Hands - 42mm - 321.10.42.50.02.001

This Omega Speedmaster Broad Arrow features a white dial and blued hands, housed in a 42mm case.

  • Condition: Fantastic condition with minor hairlines on bracelet, case, and clasp
  • Case size: 42mm
Posted at
Feb 13, 2026, 2:55 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set - BRAND NEW

Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set - BRAND NEW

A brand-new Omega Speedmaster Moonwatch Professional with a white dial is up for sale, featuring a pristine condition and functioning perfectly mechanically.

  • Condition: Brand new, unworn
  • Case materials: Stainless steel
  • Bracelet material: Stainless steel
Posted at
Feb 13, 2026, 2:45 PM
Active
[WTS] Omega Speedmaster Blue moonphase 304.33.44.52.03.001

Omega Speedmaster Blue moonphase 304.33.44.52.03.001

This Omega Speedmaster features a blue dial with moonphase display, and comes with its original box, papers, manual, and strap.

  • Condition: In great shape
  • Water Resistance: 30m
Posted at
Feb 13, 2026, 1:29 PM
Active
[WTS] Omega Speedmaster GMT 231.10.43.52.06.001 – Full Set – Grey Dial – 2014 – $3,850

Omega Speedmaster GMT 231.10.43.52.06.001 – Full Set – Grey Dial – 2014 – $3,850

A sharp, highly versatile Speedmaster with excellent wrist presence and everyday wearability.

  • Condition: Good condition
  • Year: 2014 production
  • Bracelet material: Stainless steel
  • Dial color: Grey dial
Posted at
Feb 13, 2026, 1:06 PM
Active
[WTS] Omega Speedmaster 324.23.38.50.02.001 38mm Co-Axial

Omega Speedmaster 324.23.38.50.02.001 38mm Co-Axial

The Omega Speedmaster 324.23.38.50.02.001 features a unique gold and green bezel, sits on a green leather strap with quick release function, and is in excellent condition from 2024.

  • Condition: Excellent condition
  • Diameter: 38mm
  • Strap material: Green leather
Posted at
Feb 13, 2026, 1:02 PM
Active
[WTS] Omega Speedmaster Reduced - 39mm Two Tone - Ref 175.0033 - Price Reduced!

Omega Speedmaster Reduced - 39mm Two Tone - Ref 175.0033 - Price Reduced!

Omega - 175.0033 · $2,695
A beautiful Omega Speedmaster Reduced with a white dial and 39mm two-tone design, featuring all working functions and a high-quality leather AM strap from Casanova.

  • Condition: great vintage condition, light hairlines on bezel and case
  • Case size: 39mm
  • Band: high quality leather AM strap from Casanova
Posted at
Feb 13, 2026, 1:01 PM
Active
[wts] Omega Speedmaster Moonwatch Professional Hesalite, 2025, full big box, $5800

Omega Speedmaster Moonwatch Professional Hesalite, 2025, full big box, $5800

This Omega Speedmaster Moonwatch Professional features the Co-Axial Master Chronometer Caliber 3861, has a stainless steel case with Hesalite crystal, and comes in its full big box set. It is manual wind, METAS certified, and has 50 meters water resistance.

  • Condition: mint condition
  • Case size: 42mm
  • Water resistance: 50m
  • Crystal type: Hesalite
Posted at
Feb 13, 2026, 11:22 AM
Active
[WTS] Omega Speedmaster Moonwatch Professional 42mm White Dial 310.30.42.50.04.001 Complete

Omega Speedmaster Moonwatch Professional 42mm White Dial 310.30.42.50.04.001 Complete

A 42mm Omega Speedmaster Moonwatch Professional with a white dial is being sold.

  • Condition: In very good condition, rated at 9.7/10
  • Condition Rating: 9.7/10
  • Included Accessories: Inner & outer boxes, manual, booklet, Pictogram card, Master Chronometer card, removed links and warranty card
Posted at
Feb 13, 2026, 10:41 AM
Active
[WTS] Omega Speedmaster White 2024 Full set + OEM Red racing leather strap - Warranty until July 2029 - 310.30.42.50.04.001 - $7300 + 🏷 🔥 🚀

Omega Speedmaster White 2024 Full set + OEM Red racing leather strap - Warranty until July 2029 - 310.30.42.50.04.001 - $7300 + 🏷 🔥 🚀

This is the Omega Speedmaster White, considered by the seller to be one of the most beautiful Speedmasters.

  • Condition: good condition
  • Strap Type: red leather racing strap
  • Warranty Date: until July 2029
Posted at
Feb 13, 2026, 9:44 AM
Active