Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink / Alligator

Reference 310.23.42.50.99.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a masterpiece of horology that seamlessly blends heritage, luxury, and modern technology. Its stunning pink sunburst dial radiates warmth and elegance, while the Sedna gold accents harmonize beautifully with the stainless steel case. The chronograph function is easily accessible, making it practical for everyday use. At its heart beats the Omega Caliber 3861 movement, featuring a co-axial escapement and silicon balance spring. This timepiece is not just a watch; it's a statement of sophistication and style that pairs well with both formal and casual attire.
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Key Features

  • Omega Caliber 3861 movement
  • Sedna gold accents
  • Stainless steel case
  • Tachymeter bezel
  • Water resistance up to 50 meters
  • 42mm diameter
  • Co-axial escapement and silicon balance spring

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel - Sedna Gold / Pink / Alligator
Reference
310.23.42.50.99.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
42mm
Dial Color
Pink
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] OEM Authentic Omega Speedmaster 20mm Bracelet - $575 shipped CONUS

OEM Authentic Omega Speedmaster 20mm Bracelet - $575 shipped CONUS

A 41mm Omega Speedmaster in good condition, featuring a 20mm bracelet that should fit most Speedmasters with the same lug width.

  • Condition: Good condition with some desk dive rash
  • Bracelet code: 1620/887
  • Lug width: 20mm
Posted at
Dec 3, 2025, 7:56 PM
Active
[WTS] - Omega SpeedMaster Professional 3570.50 Matte Black Dial - $4,450

- Omega SpeedMaster Professional 3570.50 Matte Black Dial - $4,450

Omega - 3570.50 · $4,450
The Omega Speedmaster Professional features a 42mm stainless steel case with a matte black dial and a black bezel insert, powered by an unknown movement.

  • Condition: excellent
  • Case size: 42mm
  • Bracelet length: up to 7 inches / 17.8 cm
  • Bracelet material: stainless steel
Posted at
Dec 3, 2025, 6:01 PM
Active
[WTS] *FINAL Price Reduction* Omega Speedmaster Professional White Dial Full Set on Speedmaster '57 Flat Link Bracelet

*FINAL Price Reduction* Omega Speedmaster Professional White Dial Full Set on Speedmaster '57 Flat Link Bracelet

This Omega Speedmaster Professional features a white dial and is paired with a Speedmaster '57 flat link bracelet, which honors the original 1957 look.

  • Condition: Fairly new, beloved
  • Bracelet type: Speedmaster '57 flat link
  • Bracelet installation location: Omega Boutique at South Coast Plaza in Costa Mesa, CA
  • Bracelet date: 8/2025
Posted at
Dec 3, 2025, 5:16 PM
Active
[WTS] Omega Speedmaster Racing 32630405002001

Omega Speedmaster Racing 32630405002001

Omega - 32630405002001 · $2,900
This Omega Speedmaster Racing is in excellent working order and features a sleek design.

  • Condition: great condition
  • Shipping Methods: Zelle, PayPal, Venmo, or wire
  • Shipping Costs: additional $60 for insured overnight FedEx
Posted at
Dec 3, 2025, 4:10 PM
Active
[WTS] Omega Speedmaster 310.32.42.50.01.002

Omega Speedmaster 310.32.42.50.01.002

This Omega Speedmaster is from 2022 and runs well with everything in great shape.

  • Condition: Great condition
  • Year: 2022
  • Shipping cost: 60
Posted at
Dec 3, 2025, 3:52 PM
Active
[WTS] 2006 OMEGA SPEEDMASTER RACING 32630405002001

2006 OMEGA SPEEDMASTER RACING 32630405002001

Omega - 32630405002001 · $1,900
2006 OMEGA SPEEDMASTER RACING is being sold.

  • Payment Methods: Zelle, Venmo, PayPal, wire transfer
Posted at
Dec 3, 2025, 3:36 PM
Active
[WTS] Omega Speedmaster 38 Chronograph 324.30.38.50.02.001 $4,200

Omega Speedmaster 38 Chronograph 324.30.38.50.02.001 $4,200

For sale is my Omega Speedmaster 38mm chronograph in like new mint condition, complete with box and papers.

  • Condition: Like new, mint condition
  • Case Size: 38mm
Posted at
Dec 3, 2025, 2:31 PM
Active
[WTS] 2024 Omega Speedmaster - First Omega in Space - 310.30.40.50.06.001 - full kit - factory warranty - very good condition

2024 Omega Speedmaster - First Omega in Space - 310.30.40.50.06.001 - full kit - factory warranty - very good condition

A modern tribute to the first Omega worn beyond Earth's atmosphere, featuring a Master Chronometer-certified movement and unique hand designs.

  • Condition: Very good
  • Case Diameter: 39.7mm
  • Movement: Master Chronometer-certified 3861
Posted at
Dec 3, 2025, 1:58 PM
Active
[WTS] Omega Speedmaster Professional White Dial Ref: 310.32.42.50.04.001

Omega Speedmaster Professional White Dial Ref: 310.32.42.50.04.001

This Omega Speedmaster Professional Moonwatch features a white dial with red accents and is one of the seller's favorite takes on a classic.

  • Condition: New
  • Shipping: Free insured overnight shipping
  • Included items: Double boxed - inner and outer, 3 warranty cards, manual/booklet, travel case, pouch
  • Buyer perks: Open to trades, 3rd party escrow and authentication available, 12 month trade ins and buy backs, timegrapher testing
Posted at
Dec 3, 2025, 10:19 AM
Active