Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator

Reference 310.63.42.50.01.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator is a masterpiece of luxury watchmaking, blending history, craftsmanship, and modern technology. Its striking black sunburst dial and Sedna Gold case exude sophistication, while its chronograph function and co-axial escapement ensure precision and reliability. With a water resistance of 50 meters and a power reserve of 50 hours, this watch is built for performance and durability. Whether you're a seasoned collector or a first-time buyer, the Speedmaster Professional Moonwatch is sure to impress with its stunning design, exceptional movement, and practical features.
Buy Now on Jomashop
This is an affiliate link
MSRP: $30,200
Market Price: $18,352

Key Features

  • Omega caliber 3861 movement
  • Sedna Gold case material
  • Master Chronometer certification by METAS
  • Chronograph function
  • Co-axial escapement
  • Plexi glass crystal
  • 50-meter water resistance

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator
Reference
310.63.42.50.01.001
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Sedna Gold 42mm
Dial Color
Black
Crystal
Plexi
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Skywalker X-33 Titanium Chronograph 31890457901001 = Box Paper

Omega Speedmaster Skywalker X-33 Titanium Chronograph 31890457901001 = Box Paper

The Omega Speedmaster Skywalker X-33 is a technologically advanced timepiece designed for professional use, featuring a black dial and full titanium construction.

  • Condition: Pre-owned with honest signs of previous wear
  • Case size: 45mm diameter
  • Bezel condition: attractive condition
  • Dial condition: perfect in every way
Posted at
Mar 9, 2026, 4:30 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Yellow Patina 1974 (Unpolished)

Omega Speedmaster Professional Moonwatch Yellow Patina 1974 (Unpolished)

Omega - 145.022-74 · $5,495
The Omega Speedmaster reference 145.022-74 represents the authentic moon landing heritage in pristine, unpolished condition. This manual winding caliber 861 chronograph showcases remarkable preservation with factory-sharp case edges and original finishing intact throughout its 42mm steel case.

  • Condition: unpolished, unrestored
  • Case dimensions: 42 x 48mm
  • Year of production: 1974
  • Movement caliber: 861 chronograph
Posted at
Mar 9, 2026, 4:04 PM
Active
[WTS] Hruodland Quartz Chronograph- Vintage Omega Speedmaster TV Dial Homage

Hruodland Quartz Chronograph- Vintage Omega Speedmaster TV Dial Homage

Omega - Speedmaster · $5,000
This watch is a vintage homage to the iconic Omega Speedmaster with a TV dial design, featuring quartz chronograph functionality.

  • Year: vintage
Posted at
Mar 9, 2026, 12:56 PM
Active
[WTS] [WTT] Omega Speedmaster Moonwatch. White Dial. Bracelet. Full Kit. Ref. 310.30.42.50.04.001

[WTT] Omega Speedmaster Moonwatch. White Dial. Bracelet. Full Kit. Ref. 310.30.42.50.04.001

A white dial Omega Speedmaster Professional Moonwatch on a steel bracelet, reference 310.30.42.50.04.001 is being sold with its full kit, including box, cards, and warranty.

  • Condition: Very good
  • Case size: 42mm diameter
  • Bracelet links included: yes
  • Box and cards included: yes
Posted at
Mar 9, 2026, 7:05 AM
Active
[WTS] Omega Speedmaster Reduced 3510.50

Omega Speedmaster Reduced 3510.50

Omega - 3510.50 · $2,800
A Omega Speedmaster Reduced 3510.50, a 39mm watch with hesalite crystal and dial lume with even cream coloring.

  • Condition: Pretty good condition considering the age with signs of light wear.
  • Case size: 39mm
  • Crystal material: hesalite
Posted at
Mar 9, 2026, 2:29 AM
Active
[WTS] Omega Speedmaster Date ref. 3212.80.00 40mm | Great Condition (with Original Box & Serviced) | $2600

Omega Speedmaster Date ref. 3212.80.00 40mm | Great Condition (with Original Box & Serviced) | $2600

Omega - 3212.80.00 · $2,600
The Omega Speedmaster Date ref. 3212.80.00 features a 40mm stainless steel case, deep blue dial, and classic tri-compax layout with running seconds, 30-minute counter, and 12-hour chronograph totalizer.

  • Condition: Great condition
  • Case size: 40mm diameter
  • Bracelet length: 7.5-7.7 inches
  • Movement power reserve: 44 hours
Posted at
Mar 8, 2026, 10:58 PM
Active
[WTS] Omega Speedmaster ’57 Gold on Leather Strap 2025 MINT FULL 331.22.42.51.01.001

Omega Speedmaster ’57 Gold on Leather Strap 2025 MINT FULL 331.22.42.51.01.001

The Omega Speedmaster Co-Axial Chronograph is a luxurious everyday chronograph with serious pedigree, blending legendary heritage with refined execution.

  • Condition: Mint, minimal signs of wear
  • Case Size: 41.5 mm diameter
  • Thickness: 16.17 mm
  • Lug To Lug: 50 mm
Posted at
Mar 8, 2026, 10:36 PM
Active
[WTS] Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal

Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal

Omega - 3570.50.00 · $3,999
Selling an Omega Speedmaster Professional 3570.50.00 (Hesalite) 1861 cal watch in good condition, with a full service at Omega AD in 2022 and original papers from the first owner.

  • Condition: good condition
  • Year of purchase: 2014
  • Bracelet condition: has scratches on clasp area due to typing on a laptop
  • Additional accessories: extra NATO strap
Posted at
Mar 8, 2026, 9:34 PM
Active
[WTS] Omega Speedmaster METAS 3861 Sapphire Sandwich - Mint - 2023 (under Omega warranty until 2028) - Latest Version With Quick Adjust Clasp - Full Kit

Omega Speedmaster METAS 3861 Sapphire Sandwich - Mint - 2023 (under Omega warranty until 2028) - Latest Version With Quick Adjust Clasp - Full Kit

Omega - 3861 · $6,900
This Omega Speedmaster Moonwatch is a full kit dated May 2023, under warranty until May 2028. It has some minor scratches on the clasp but runs flawlessly and is in great condition.

  • Condition: Mint with desk dive scratches on the clasp
  • Year of manufacture: 2023
  • Warranty expiration year: 2028
  • Case condition: Mint
Posted at
Mar 8, 2026, 8:54 PM
Active