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 Professional Sapphire 1863 311.30.42.30.01.006 - $4,150

Omega Speedmaster Professional Sapphire 1863 311.30.42.30.01.006 - $4,150

This Omega Speedmaster Moonwatch Professional is a 42mm watch that functions perfectly mechanically and comes in amazing condition.

  • Condition: Amazing condition
  • Bracelet size fits wrist: 6.5 inches
Posted at
May 6, 2025, 7:37 PM
Active
Omega Speedmaster ’57 331.10.42.51.01.002

Omega Speedmaster ’57 331.10.42.51.01.002

Omega - 331.10.42.51.01.002 · $5,670.006
This Omega Speedmaster '57 Co-Axial Chronograph features a 41.5mm stainless steel case, black dial with twin-register chronograph layout, and is powered by Omega's in-house Co-Axial calibre 9300 movement.

  • Condition: Excellent pre-owned condition
  • Case size: 41.5mm diameter
  • Movement: Co-Axial calibre 9300 with 60-hour power reserve
  • Bracelet material: stainless steel
Posted at
May 6, 2025, 5:15 PM
Active
[WTS] Omega Speedmaster Professional 3590.50 - $3495 Shipped ✈️

Omega Speedmaster Professional 3590.50 - $3495 Shipped ✈️

Omega - 3590.50 · $3,495
This Omega Speedmaster Professional features a Tritium dial and Cal 861 movement, with all functions working well.

  • Condition: Excellent (Watch runs well, all functions work)
  • Size: 7.5 inch wrist size
  • Location: Conus (USA)
Posted at
May 6, 2025, 5:12 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch ( 310.30.42.50.01.001 ) - Full Kit - Reduced

Omega Speedmaster Professional Moonwatch ( 310.30.42.50.01.001 ) - Full Kit - Reduced

This Omega Speedmaster Professional is a 42mm watch with a full kit. It has been used but is in great condition, with some small scratches around the watch and on the bracelet.

  • Condition: Great condition, some small scratches
  • Bracelet condition: Little to no scratches
  • Payment methods: Bank Wire, paypal f&f
Posted at
May 6, 2025, 5:04 PM
Active
[WTS] Omega Speedmaster Reduced 3511.12 Yellow JAPAN 🇯🇵 EXCLUSIVE

Omega Speedmaster Reduced 3511.12 Yellow JAPAN 🇯🇵 EXCLUSIVE

Omega - 3511.12 · $2,275
Additional Details: Omega Speedmaster Reduced, watch comes with box and booklet, 7" bracelet

  • Bracelet length: 7 inch
  • Box and papers included: yes
Posted at
May 6, 2025, 4:31 PM
Active
[WTS] Omega Speedmaster Day Date 3520.50

Omega Speedmaster Day Date 3520.50

Omega - 3520.50 · $1,499
This Omega Speedmaster Day Date is a Triple Date model with an AM strap. It keeps accurate time but requires a new mainspring due to a weak power reserve.

  • Condition: as-is, needs new mainspring and repair of top pusher
  • Case Size: 40mm diameter
  • Material: AM strap
Posted at
May 6, 2025, 4:23 PM
Active
Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)

Omega - 310.30.42.50.01.002 · $6,750.007
A brand new Omega Speedmaster Moonwatch Professional Sapphire with Adjustable Clasp, featuring a 42mm stainless steel case and 3861 Omega Master Chronometer Movement.

  • Condition: Brand new
  • Case size: 42mm diameter
  • Water resistance: not specified
Posted at
May 6, 2025, 3:19 PM
Active
Omega Speedmaster Moonwatch Hesalite - 3861 - 310.30.42.50.01.001 (new / 2025)

Omega Speedmaster Moonwatch Hesalite - 3861 - 310.30.42.50.01.001 (new / 2025)

Omega - 310.30.42.50.01.001 · $5,950.006
This Omega Speedmaster Moonwatch Professional features a stainless steel case and a Master Chronometer movement, with a hesalite crystal. It comes complete with all boxes, papers, booklets, hang tag, and a 2025 Omega Warranty Card.

  • Condition: Brand New
  • Case size: 42mm
  • Movement type: Master Chronometer
Posted at
May 6, 2025, 3:18 PM
Active
Omega Speedmaster Reduced White Dial Automatic 3510.2000

Omega Speedmaster Reduced White Dial Automatic 3510.2000

Omega - 3510.20.00 · $3,640.004
A white dial Omega Speedmaster Reduced, a chronograph with a mechanical automatic movement, housed in a stainless steel case.

  • Condition: 90%
  • Case Size: 38mm diameter
  • Movement Type: Mechanical Automatic
Posted at
May 6, 2025, 12:47 PM
Active