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.
Buy Now on Jomashop
This is an affiliate link

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

2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPERS!

2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPERS!

Omega - 310.32.42.50.02.001 · $16,200
2023 Omega Speedmaster �SNOOPY� 50th Anniversary edition timepiece with stainless steel case, coated nylon fabric band, and manual movement.

  • Condition: Excellent, pre-owned with minor surface wear on case and strap
  • Movement Type: Manual
  • Case Diameter: 42mm
  • Water Resistance: 50m
Posted at
Feb 11, 2025, 4:06 PM
Active
Omega Speedmaster Date 1957 Limited Edition �2,009� BOXES/PAPERS/SERVICED!

Omega Speedmaster Date 1957 Limited Edition �2,009� BOXES/PAPERS/SERVICED!

This Limited Edition Speedmaster was produced in just 2,009 pieces specifically for the Japanese market. It comes with outer white box, missing inner red box, manuals, hangtag, service paperwork/parts, and all 3 cards.

  • Condition: pre-owned, nice condition with typical cosmetic wear on the case and bracelet
  • Bezel Type: Fixed with Tachymetric Scale
  • Band Material: Stainless Steel
  • Case Diameter: 40mm
Posted at
Feb 11, 2025, 4:01 PM
Active
NEW 2025 Omega Speedmaster Moonwatch Professional Chronograph 42mm White Dial

NEW 2025 Omega Speedmaster Moonwatch Professional Chronograph 42mm White Dial

This is a new 2025 Omega Speedmaster Moonwatch Professional Chronograph with a 42mm stainless steel case and a white dial.

  • Condition: Brand New/Unworn
  • Box And Papers: Yes
  • Warranty Years: 5
Posted at
Feb 11, 2025, 8:13 AM
Active
OMEGA Speedmaster Dark Side of the Moon 311.92.44.51.01.005 44mm w/BOX & PAPERS

OMEGA Speedmaster Dark Side of the Moon 311.92.44.51.01.005 44mm w/BOX & PAPERS

The OMEGA Speedmaster Dark Side of the Moon is a 44mm watch featuring a black ceramic case, dial, and bezel, with a sapphire crystal and exhibition caseback. It has a chronograph complication and date display at 6:00.

  • Condition: Good preowned condition
  • Case size: 44.25 mm
  • Movement: 9300 Caliber Movement
Posted at
Feb 10, 2025, 2:36 PM
Active
2023 Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002

2023 Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002

A personal Omega Speedmaster Professional Moonwatch with Sapphire crystal in excellent condition, worn only a few times.

  • Condition: Excellent
  • Year Purchased: 2024
  • Warranty Remaining Years: 3
  • Included Accessories: Outer/Inner Box,Warranty Cards,Booklets/Manual,Links
Posted at
Feb 10, 2025, 10:05 AM
Active
[WTS] Omega Tokyo Olympics 'Yellow Ring' Speedmaster 522.20.42.30.01.001

Omega Tokyo Olympics 'Yellow Ring' Speedmaster 522.20.42.30.01.001

This Omega Speedmaster Tokyo Olympics 'Yellow Ring' features a unique design and is in good condition, with watch and box included.

  • Condition: Good condition all around
  • Shipping: Free shipping within the US, possible options for overseas shipping
Posted at
Feb 10, 2025, 9:42 AM
Active
Omega Speedmaster FOIS 31030405006001 First Omega In Space 2024 Soleil Blue

Omega Speedmaster FOIS 31030405006001 First Omega In Space 2024 Soleil Blue

Omega - 31030405006001 · $6,950
A 2024 Omega Speedmaster FOIS in Soleil Blue, purchased at an Omega Boutique and sized to a 7 inch wrist.

  • Condition: Pre-owned, lightly worn
  • Purchase Year: 2024
  • Warranty: No mention of warranty
Posted at
Feb 9, 2025, 9:33 AM
Active
Omega Speedmaster Triple Date Calendar Moonphase 18k Ref. 175.0034

Omega Speedmaster Triple Date Calendar Moonphase 18k Ref. 175.0034

Omega - 175.0034 · $14,950
Omega's Speedmaster Day-Date Moonphase features a white dial, chronograph, date, day, and moon phase functions in an 18K yellow gold case with a size of 39mm.

  • Condition: 90%
  • Case material: 18K Yellow Gold
  • Movement type: Mechanical Automatic
Posted at
Feb 9, 2025, 9:19 AM
Active
2021 OMEGA Speedmaster Racing - 326.30.40.50.01.001326.30.40.50.01.001

2021 OMEGA Speedmaster Racing - 326.30.40.50.01.001326.30.40.50.01.001

A 2021 OMEGA Speedmaster Racing, featuring a 40mm stainless steel case with scratch-resistant sapphire crystal and 100m water resistance.

  • Condition: Like New
  • Case Size: 40mm diameter
  • Material: stainless steel
  • Crystal: scratch-resistant sapphire crystal
Posted at
Feb 7, 2025, 2:14 PM
Active