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 $4,511 BRAND NEW

Omega Speedmaster $4,511 BRAND NEW

Omega - Speedmaster · $4,511
This is a brand new Omega Speedmaster watch. It's a classic design that exudes style and sophistication.

  • Condition: Brand New
Posted at
Oct 25, 2025, 11:49 AM
Active
[WTS] Omega Speedmaster Professional Hesalite - Weeks Old! 310.30.42.50.01.001

Omega Speedmaster Professional Hesalite - Weeks Old! 310.30.42.50.01.001

This Omega Speedmaster Professional has been purchased brand new within the past month and comes with full set, boxes, papers, and warranty.

  • Condition: Like new, consistent with about a week of total wear
  • Warranty: 10/25 warranty
Posted at
Oct 25, 2025, 11:04 AM
Active
[WTS] Omega Speedmaster Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,195

Omega Speedmaster Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,195

This Omega Speedmaster Moonwatch, part of the Dark Side of the Moon collection, features a Vintage Black design.

  • Condition: Excellent condition with minimal signs of wear
  • Year: 2022
  • Contents: Watch,Inner & Outer Box,International Warranty Card,Pictograms Card,Card Holder,Operating Instructions Manual,Omega Travel Box
  • Condition Details: Strap is relatively new (purchased 4/27/25), Inner box has some wear
Posted at
Oct 25, 2025, 10:50 AM
Active
[WTS] 2024 Omega Speedmaster Professional Moonphase 44.25mm 304.33.44.52.03.001 Blue Dial

2024 Omega Speedmaster Professional Moonphase 44.25mm 304.33.44.52.03.001 Blue Dial

2024 Omega Speedmaster Professional Moonphase in 44.25mm size with blue dial.

  • Condition: Pre-Owned, with wear on polished parts of case and worn but still usable strap
  • Case size: 44.25mm diameter
Posted at
Oct 24, 2025, 11:13 PM
Active
[WTS] [CANADA] Omega Speedmaster Reduced - MOP Dial - 39mm

[CANADA] Omega Speedmaster Reduced - MOP Dial - 39mm

Omega - 3534.79 · $2,400
A unique Omega Speedmaster Reduced featuring a mother of pearl dial with vibrant red Arabic numerals, available in a 39mm case size.

  • Condition: Very well preserved with expected wear for the age
  • Case Size: 39mm diameter
  • Movement: Omega automatic chronograph
  • Dial Material: Mother of pearl
Posted at
Oct 24, 2025, 12:39 PM
Active
[WTS] Omega Speedmaster ‘57 Blue Dial Full Set 331.10.42.51.03.001

Omega Speedmaster ‘57 Blue Dial Full Set 331.10.42.51.03.001

This Omega Speedmaster '57 Blue Dial features a blue dial and red chrono hands, dated 2015, and is in good condition with some scratches. It comes as a full set with original box, warranty cards, and extra links.

  • Condition: Good condition with scratches, serviced in 2017
  • Case diameter: 41.5mm
  • Lug width: 20mm
Posted at
Oct 24, 2025, 1:51 AM
Active
[WTS] Omega Speedmaster Day Date Blue Dial 3523.80 Automatic $1600

Omega Speedmaster Day Date Blue Dial 3523.80 Automatic $1600

Omega - 3523.80 · $1,600
This Omega Speedmaster Day Date features a blue dial and is powered by an automatic movement.

  • Condition: Mint
  • Case Size: 39mm diameter
  • Bracelet Length: 17.5cm
Posted at
Oct 23, 2025, 9:32 PM
Active