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

Reference 310.20.42.50.99.001

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

Omega SPEEDMASTER PROFESSIONAL MOONWATCH 3861 WHITE DIAL 2025 WARRANTY FULL SET

Omega SPEEDMASTER PROFESSIONAL MOONWATCH 3861 WHITE DIAL 2025 WARRANTY FULL SET

Omega - 310.30.42.50.04.001 · $7,425.007
This is a new 2025 model Omega Speedmaster Professional Moonwatch with a 42mm stainless steel case and white dial, featuring a manual-winding chronograph movement with co-axial escapement.

  • Condition: Excellent Condition
  • Movement: 3861 Manual-Winding Chronograph
  • Case material: Stainless Steel
  • Diameter: 42mm
Posted at
Jun 11, 2025, 9:07 PM
Active
[WTS] Omega Speedmaster Automatic MK40 Day Date Ref 3520.53

Omega Speedmaster Automatic MK40 Day Date Ref 3520.53

Omega - 3520.53 · $2,650
One of the coolest Speedmaster variants, featured in A Man and His Watch, with a tritium dial and luminova hands.

  • Condition: Pre-owned, with wear and dings on the bezel, insert, and case
  • Case size: 39mm diameter
Posted at
Jun 11, 2025, 8:36 PM
Active
Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001

Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001

Omega - 522.30.42.30.03.001 · $4,900.005
This Omega Speedmaster Professional Tokyo 2020 is a high-end watch that comes with its original boxes and books, but no warranty card. It's in excellent condition.

  • Condition: Excellent condition
  • Box And Papers: includes
  • Warranty Card: no
Posted at
Jun 11, 2025, 7:30 PM
Active
[WTS] Omega Speedmaster Professional Sapphire 3861

Omega Speedmaster Professional Sapphire 3861

Omega - 3861 · $5,100
A Omega Speedmaster Professional Sapphire Sandwich sold on an OEM rubber strap, also including an unworn leather strap and full kit of original accessories.

  • Condition: Excellent preowned
  • Strap included: 2
  • Case condition: preowned
Posted at
Jun 11, 2025, 4:16 PM
Active
Omega Speedmaster - First Omega in Space - FOIS - 310.30.40.50.06.001 ( new )

Omega Speedmaster - First Omega in Space - FOIS - 310.30.40.50.06.001 ( new )

Omega - 310.30.40.50.06.001 · $8,250.008
This Omega Speedmaster 3861 Anniversary Series is a brand new First Omega in Space (FOIS) model, reference # 310.30.40.50.06.001, featuring a stainless steel case and Omega 3861 calibre.

  • Condition: Brand New / Complete Set
  • Case Size: 39.7mm
  • Material: Stainless Steel
  • Calibre: Omega 3861
Posted at
Jun 11, 2025, 3:43 PM
Active
[WTS] White Omega Speedmaster Pro

White Omega Speedmaster Pro

A white dial Omega Speedmaster Pro comes with a box and card, and has a warranty dated July 2024.

  • Box: yes, included
  • Card: yes, included
  • Warranty: until July 2026
Posted at
Jun 11, 2025, 3:12 PM
Active
[WTS] OMEGA Speedmaster Dark Side of the Moon “Black Black”- DSOTM - 311.92.44.51.01.005

OMEGA Speedmaster Dark Side of the Moon “Black Black”- DSOTM - 311.92.44.51.01.005

This is a rare Omega Speedmaster Dark Side of the Moon "Black Black" watch, one of only 56 pieces made in this colorway.

  • Condition: Excellent condition, very little signs of wear
  • Case Diameter: 44mm
  • Band Material:
  • Movement Type:
Posted at
Jun 11, 2025, 11:39 AM
Active

2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

  • Condition: Minty fresh
  • Case size: 42mm
  • Year: 2022
  • Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Posted at
Apr 7, 2025, 2:59 PM
Active
Omega Speedmaster Chronograph  - Blue - Stainless Steel - 38mm - Mint

Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint

This Omega Speedmaster Chronograph features a 38mm stainless steel case, blue dial, and automatic movement.

  • Condition: Pre-Owned - Mint
  • Case size: 38mm diameter
  • Bracelet type: Stainless Steel
  • Dial color: Blue
Posted at
Apr 5, 2025, 6:13 PM
Active