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

Reference 310.20.42.50.99.001

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

About this watch

The Omega Speedmaster Professional Moonwatch 310.20.42.50.99.001 is a stunning blend of tradition and innovation, featuring a unique Sedna Gold and pink finish. Its 42mm stainless steel case and Sedna Gold accents command attention, while the remarkable Omega caliber 3861 movement boasts a co-axial escapement, reducing friction for enhanced accuracy and longevity. Certified by METAS as a Master Chronometer, this watch can resist magnetic fields reaching an impressive 15,000 gauss. The sunburst pink finish adds sophistication, making it perfect for both casual and formal settings.
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Key Features

  • Omega caliber 3861 movement
  • 42mm stainless steel case
  • Sedna Gold accents
  • Co-axial escapement
  • Master Chronometer certified by METAS
  • 50m water resistance
  • Chronograph function

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink
Reference
310.20.42.50.99.001
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 Professional “Sapphire Sandwich” – Ref. 310.30.42.50.01.002 $6800 plus label

Omega Speedmaster Professional “Sapphire Sandwich” – Ref. 310.30.42.50.01.002 $6800 plus label

Omega - 310.30.42.50.01.002 · $6,800
This Omega Speedmaster Professional features a 'Sapphire Sandwich' design and comes with its box, warranty cards, and hang tag.

  • Condition: Pre-owned, noticeable wear on the polished case sides
  • Bracelet condition: light wear overall
Posted at
Apr 25, 2026, 9:38 PM
Active
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[WTS] Omega Speedmaster Dark Side Of The Moon (DSOM) - ref. 310.92.44.50.01.001 $12,000 plus shipping label

Omega Speedmaster Dark Side Of The Moon (DSOM) - ref. 310.92.44.50.01.001 $12,000 plus shipping label

Omega - 310.92.44.50.01.001 · $12,000
This Omega Speedmaster Dark Side Of The Moon (DSOM) is in excellent condition, with minimal wear. It comes with a full set of accessories and includes a warranty card.

  • Condition: Like new
  • Box and papers: true
Posted at
Apr 25, 2026, 9:32 PM
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[WTS] Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Bead Blasted Case Ref 145.0044 - German Market Exclusive

Rare Vintage Omega Speedmaster Teutonic Ghost Gray Dial Bead Blasted Case Ref 145.0044 - German Market Exclusive

Omega - 145.0044 · $2,795
A unique vintage Omega Speedmaster Teutonic ref 145.0040 designed for the German market in the early 1980s, featuring a bead-blasted case and gray dial.

  • Condition: Pre-owned, some wear
  • Case size: 42mm diameter
  • Bracelet length: up to 7.25 inches
  • Movement type: Manual wound Omega cal 861
Posted at
Apr 25, 2026, 9:21 PM
Active
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[WTS] Omega Speedmaster Moonwatch 3861 Hesalite – $3800

Omega Speedmaster Moonwatch 3861 Hesalite – $3800

Omega - 3861 · $3,800
  • Hesalite crystal: present instead of sapphire
Posted at
Apr 25, 2026, 2:49 PM
Active
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[WTS] 2025 Omega Speedmaster 38 324.23.38.50.02.001 Gold Full Set B&P - $5,995.00

2025 Omega Speedmaster 38 324.23.38.50.02.001 Gold Full Set B&P - $5,995.00

Omega - 324.23.38.50.02.001 · $5,995
2025 Omega Speedmaster 38 in gold, includes full set and B&P.

  • Water resistance: 30m depth rating
Posted at
Apr 25, 2026, 12:20 PM
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[WTS] Omega Speedmaster Date 3211.31 COMPLETE SET + OEM BRACELET

Omega Speedmaster Date 3211.31 COMPLETE SET + OEM BRACELET

Omega - 3211.31 · $2,750
For sale is an Omega Speedmaster Date in amazing condition, complete set including warranty card and original speedmaster bracelet.

  • Condition: amazing condition with hardly any wear
  • Bracelet type: OEM
  • Payment methods accepted: crypto, cash, etc.
  • Location: southwest FL
Posted at
Apr 25, 2026, 12:19 PM
Active
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[WTS] 2021 Omega Speedmaster Racing 329.32.44.51.01.001 Orange Full Set - $6,495

2021 Omega Speedmaster Racing 329.32.44.51.01.001 Orange Full Set - $6,495

Omega - 329.32.44.51.01.001 · $6,495
A 2021 Omega Speedmaster Racing in excellent condition, featuring a racing design and available as a full set with various accessories.

  • Condition: Excellent condition with minimal signs of wear
  • Size: 40mm diameter
  • Year: 2021
Posted at
Apr 25, 2026, 9:40 AM
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[WTS] Omega Speedmaster Grey Side of the Moon 311.93.44.51.99.001 Full Set $7,200

Omega Speedmaster Grey Side of the Moon 311.93.44.51.99.001 Full Set $7,200

Omega - 311.93.44.51.99.001 · $7,200
A modern and highly distinctive take on the Speedmaster line featuring a full grey ceramic case and matching dial.

  • Condition: Excellent (pre-owned, minimal wear)
  • Case Size: 44.25mm diameter
  • Case Material: Grey ceramic
  • Movement: Automatic chronograph (Omega Co-Axial Calibre 9300)
Posted at
Apr 25, 2026, 9:37 AM
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[WTS] Omega Speedmaster Professional White, 2024 $7k

Omega Speedmaster Professional White, 2024 $7k

Omega - 310.30.42.50.04.001 · $7,000
This Omega Speedmaster Professional White is a pre-owned watch with a reference number of 310.30.42.50.04.001, featuring a white color scheme.

  • Condition: Preowned
  • Shipping Cost: $150 (USA shipping)
  • Payment Methods: Wire or Credit Card (+4.9% & 4 days clearance)
  • Warranty Type: 2024 Warranty
Posted at
Apr 25, 2026, 8:52 AM
Active
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