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

[WTS] 42mm Omega Speedmaster Professional 1980’s (approximation) excellent condition

42mm Omega Speedmaster Professional 1980’s (approximation) excellent condition

This is a 42mm Omega Speedmaster Professional from the 1980's in excellent condition. It has been well-maintained and shows minimal signs of wear.

  • Condition: excellent condition
  • Diameter: 42mm
Posted at
Sep 2, 2025, 3:47 AM
Active
[WTS] Omega Speedmaster Triple Date 3523.30

Omega Speedmaster Triple Date 3523.30

Omega - 3523.30 · $1,850
A Omega Speedmaster Triple Date with a 39mm case size, recently serviced and running within specs.

  • Condition: Very good condition
  • Case Size: 39mm diameter
Posted at
Sep 1, 2025, 9:22 PM
Active
[WTS] Omega Speedmaster 40MM “FOIS” (First Omega In Space) Ref - 310.30.40.50.06.001 (NEW 2025 COMPLETE SET W/ STICKERS)

Omega Speedmaster 40MM “FOIS” (First Omega In Space) Ref - 310.30.40.50.06.001 (NEW 2025 COMPLETE SET W/ STICKERS)

This listing is for a brand new Omega Speedmaster 'FOIS' watch, featuring a 40MM case size and a First Omega In Space reference.

  • Condition: new and unworn
  • Case size: 40MM diameter
  • Included items: outer box,inner box,warranty card,pictograms card,master chronometer card,x2 manuals,microfiber,travel case
  • Payment methods: Zelle,Wire transfer,Amex +4%
Posted at
Sep 1, 2025, 8:38 PM
Active
[WTS] Omega Speedmaster. White Ceramic. Gorgeous Lume.

Omega Speedmaster. White Ceramic. Gorgeous Lume.

Omega - Speedmaster · $2,595
The Omega Speedmaster is a 38mm white ceramic watch with excellent lume, available for sale.

  • Case size: 38mm
  • Material: white ceramic
  • Lume quality: gorgeous
Posted at
Sep 1, 2025, 3:52 PM
Active
[WTS][US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set - Brand New

[US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set - Brand New

Up for sale is an Omega Speedmaster First Omega in Space - FOiS, a brand new watch that functions perfectly and comes with a full set of accessories.

  • Condition: Brand New
  • Case diameter: 40mm
Posted at
Sep 1, 2025, 10:23 AM
Active