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] Omega Speedmaster 39mm Japanese Market

Omega Speedmaster 39mm Japanese Market

Omega - 3513.53 · $1,680
This Omega Speedmaster features a 39mm dial and is powered by automatic movement calibre 1152.

  • Condition: clean condition overall, scratch on crystal above date
  • Movement caliber: calibre 1152
  • Bracelet fit: approx 7 inches
Posted at
Aug 24, 2025, 5:07 AM
Active
[WTS] Omega Speedmaster Sapphire Sandwhich 3999$

Omega Speedmaster Sapphire Sandwhich 3999$

Omega - 3573.50 · $3,999
This Omega Speedmaster Sapphire Sandwhich features a 42mm dial size, sapphire crystal on top, and an exhibition caseback with the cal 1861 manual winding movement.

  • Condition: clean condition overall
  • Dial Size: 42mm
  • Crystal Type: sapphire
  • Movement: cal 1861 manual winding
Posted at
Aug 24, 2025, 4:57 AM
Active
[WTS] Omega Speedmaster MK40  Schumacher Ref : 3520.53.00 Condition Good Price : 2800$

Omega Speedmaster MK40 Schumacher Ref : 3520.53.00 Condition Good Price : 2800$

Omega - 3520.53.00 · $2,800
The Omega Speedmaster Day-Date Ref. 3520.53.00 is a vintage Moonwatch variant from the 1990s that blends a chronograph with a triple calendar and AM/PM indicator.

  • Condition: Good
  • Movement: Automatic, Omega caliber 1151 (based on Valjoux 7751)
  • Case size: 39mm diameter
  • Crystal type: Scratch-resistant sapphire
Posted at
Aug 23, 2025, 11:24 PM
Active
[WTS] 2023 Omega Speedmaster Super Racing 44.25mm 329.30.44.51.01.003

2023 Omega Speedmaster Super Racing 44.25mm 329.30.44.51.01.003

2023 Omega Speedmaster Super Racing with a 44.25mm case size, in great condition with some signs of wear.

  • Condition: Pre-Owned, with wear on clasp, bracelet, and polished sides of lugs
  • Water Resistance: 100m depth rating
  • Service History: Unknown
  • Box And Papers: Triple-boxed, manual, NATO strap, and other accessories
Posted at
Aug 23, 2025, 9:08 PM
Active