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 Reverse 馃敟BNIB 3/2026, $10.5k +Shipping馃敟

Omega Speedmaster Reverse 馃敟BNIB 3/2026, $10.5k +Shipping馃敟

Omega - 310.30.42.50.01.004 $10,500
The Omega Speedmaster Reverse is being sold as a brand new watch with a reference number of 310.30.42.50.01.004.

  • Condition: Brand New
  • Serial Number: not found
  • Depth Rating: not found
  • Water Resistance: not found
Posted at
Mar 10, 2026, 10:19 PM
Active
[WTS] Omega Speedmaster Professional Hesalite | 310.30.42.50.01.001 | Dated 03/2023 | $5500 OBO

Omega Speedmaster Professional Hesalite | 310.30.42.50.01.001 | Dated 03/2023 | $5500 OBO

Omega - 310.30.42.50.01.001 $5,500
This Omega Speedmaster Professional Moonwatch features a stainless steel case with a black dial and Hesalite crystal, powered by a manual wind mechanical movement.

  • Condition: Very Good Condition
  • Case Dimensions: 42mm diameter
  • Bezel: stainless steel black
  • Dial Color: black
Posted at
Mar 10, 2026, 9:55 PM
Active
[WTS] 2024 OMEGA SPEEDMASTER PROFESSIONAL- WHITE DIAL - FULL KIT - $7,800

2024 OMEGA SPEEDMASTER PROFESSIONAL- WHITE DIAL - FULL KIT - $7,800

Omega - 310.30.42.50.04.001 $7,800
The 2024 White Dial Omega Speedmaster Professional features a glossy, lacquered white stepped dial with applied blackened markers and hands. It is powered by the METAS-certified Master Chronometer Calibre 3861 and viewed through a sapphire exhibition caseback.

  • Condition: Great condition/minor desk diving
  • Movement: Manual-winding Calibre 3861 (Anti-magnetic to 15,000 gauss)
  • Dial size: 42mm
  • Water resistance: unknown
Posted at
Mar 10, 2026, 9:38 PM
Active
[WTS] Omega Speedmaster Moonwatch 310.30.42.50.01.002 - Legendary Timepiece

Omega Speedmaster Moonwatch 310.30.42.50.01.002 - Legendary Timepiece

Omega - 310.30.42.50.01.002 $6,900
The Omega Speedmaster Professional Moonwatch, reference 310.30.42.50.01.002, is an iconic timepiece that combines precision with timeless design. Featuring a robust stainless steel case and a classic black dial, it's not just a watch鈥攊t's a piece of history.

  • Condition: Good
  • Case material: stainless steel
  • Dial color: black
Posted at
Mar 10, 2026, 5:32 PM
Active
[WTS] Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers - Price Reduced!

Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers - Price Reduced!

Omega - 329.30.44.51.01.001 $5,850
A Omega Speedmaster Racing Chronograph in the model 329.30.44.51.01.001 features a 44.25mm size and has all functions working as expected.

  • Condition: pre-owned with minor wear
  • Size: 44.25mm diameter
  • Bracelet material: stainless steel
Posted at
Mar 10, 2026, 4:54 PM
Active
[WTS] Omega Speedmaster First Omega In Space (FOIS)

Omega Speedmaster First Omega In Space (FOIS)

Omega - 311.32.40.30.01.001 $4,250
This Omega Speedmaster "First Omega in Space" features a size of 39.7mm and comes with multiple straps.

  • Case Size: 39.7mm
  • Strap Count: 6
  • Includes: Omega boxes,pictogram card,operating instructions booklet
Posted at
Mar 10, 2026, 1:14 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Mint Full Set $3250

Omega Speedmaster Reduced 3510.50 Mint Full Set $3250

Omega - 3510.50 $3,250
A beautiful Omega Speedmaster Reduced from 1998, featuring a matte black dial with white inscriptions and a stainless steel case measuring 39mm.

  • Condition: Mint
  • Case size: 39mm diameter
  • Movement: Automatic Omega caliber 3220 (ETA 2890-2 with Dubois-Depraz chronograph module)
  • Bracelet type: Omega 1469
Posted at
Mar 10, 2026, 9:03 AM
Active
[WTS] Omega Speedmaster 3520.53  - $2,690

Omega Speedmaster 3520.53 - $2,690

Omega - 3520.53 $2,690
Up for sale is my great condition Omega Speedmaster 3520.53, which measures 39mm and has an automatic movement.

  • Condition: great condition with minor usage marks and patina
  • Case size: 39mm diameter
  • Movement type: automatic
  • Bracelet type: original Omega Steel speedmaster bracelet
Posted at
Mar 9, 2026, 10:04 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional White Dial 310.30.42.50.04.001 - Full Set - 2025 - Excellent Condition

Omega Speedmaster Moonwatch Professional White Dial 310.30.42.50.04.001 - Full Set - 2025 - Excellent Condition

Omega - 310.30.42.50.04.001 $8,150
2025 Omega Speedmaster Professional Moonwatch with a white dial, excellent condition, and minimal superficial wear.

  • Condition: Excellent pre-owned
  • Case material: Stainless steel
  • Case diameter: 42mm
  • Movement type: Manual-winding
Posted at
Mar 9, 2026, 7:51 PM
Active