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.
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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] Nicest Example Out There??? Rare Vintage 18K Gold Omega Speedmaster “Tribute to Astronauts” Ref BA145.022 Unpolished Collector Grade!

Nicest Example Out There??? Rare Vintage 18K Gold Omega Speedmaster “Tribute to Astronauts” Ref BA145.022 Unpolished Collector Grade!

Omega - BA145.022-69 · $47,500
This is a rare vintage 18K gold Omega Speedmaster 'Tribute to Astronauts' ref BA145.022 Unpolished Collector Grade watch, one of only 1014 made starting in November of 1969.

  • Condition: Collector grade, unpolished all original with incredible patina forming on the gold
  • Case size: 42mm
  • Diameter: 42mm
  • Bezel condition: Correct DON (dot over 90) maroon bezel with light wear mostly seen on the edge
Posted at
May 3, 2026, 10:31 PM
Active
[WTS] Omega Speedmaster Reduced 3510.21 Limited Edition (2,000 Pcs) Marui 39mm , B&P  - $5,550

Omega Speedmaster Reduced 3510.21 Limited Edition (2,000 Pcs) Marui 39mm , B&P - $5,550

Omega - 3510.21 · $5,550
Up for sale is my Omega Speedmaster 3510.21, a limited edition watch with only 2,000 pieces produced. It measures 39mm and features an automatic movement.

  • Condition: Very good condition
  • Case size: 39mm diameter
  • Movement type: Automatic
Posted at
May 3, 2026, 8:39 PM
Active
[WTS] 3510.50 Omega Reduced Speedmaster Excellent vintage condition with original warranty card Serviced recently

3510.50 Omega Reduced Speedmaster Excellent vintage condition with original warranty card Serviced recently

Omega - 3510.50 · $2,999
This is a 26-year-old Omega Reduced Speedmaster in excellent overall condition, with a jet black dial and even lume application. The watch has been recently serviced and comes with the original warranty card.

  • Condition: Excellent vintage condition
  • Warranty Card Origin: Kimuraya in Yokohama, Japan
  • Service History: Recently serviced
  • Timegrapher Results: Deadman's line on timegrapher, 300 amplitude, all zeros without a single blimp out of place
Posted at
May 3, 2026, 8:27 PM
Active
[WTS] Omega Speedmaster Apollo 17

Omega Speedmaster Apollo 17

Omega - Apollo 17 · $8,500
This is a rare Omega Speedmaster with only 1972 pieces ever made. It has no major marks, except for some scuffing on the AR.

  • Condition: good
  • Production Run: only 1972 pieces ever made
  • Wrist Fits: 7.3 inches
Posted at
May 3, 2026, 7:38 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Hesalite 3861 — 2022

Omega Speedmaster Professional Moonwatch Hesalite 3861 — 2022

Omega - 3861 · $60,000
a luxury watch, Omega Speedmaster Professional Moonwatch Hesalite edition from 2022

  • Year: 2022
Posted at
May 3, 2026, 4:44 PM
Active
[WTS] Omega Speedmaster Moonphase 2024 Complete Set Blue Ceramic Mint Condition

Omega Speedmaster Moonphase 2024 Complete Set Blue Ceramic Mint Condition

The Omega Speedmaster Moonphase is a modern execution of the flagship model, featuring full blue ceramic construction and a stunning dial. It's lightweight, technical, and visually unique in the Speedmaster lineup. The watch feels special on the wrist.

  • Condition: Mint Condition
  • Case material: Blue Ceramic
  • Dial color: stunning
Posted at
May 3, 2026, 2:12 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Ref: 311.30.42.30.01.005

Omega Speedmaster Professional Moonwatch Ref: 311.30.42.30.01.005

This 'Big Box' Collector's set has the classic Omega Speedmaster Professional Moonwatch with a 42mm case, Hesalite Crystal, and closed caseback.

  • Condition: Very Good
  • Case size: 42mm
  • Movement: 1861 movement
Posted at
May 3, 2026, 1:29 PM
Active
[WTS] Omega Speedmaster 39mm. Triple Date. Automatic..

Omega Speedmaster 39mm. Triple Date. Automatic..

A 39mm Omega Speedmaster with triple date and automatic movement.

  • Shipping: from NJ USA
  • Additional Pictures: available on dropbox
Posted at
May 3, 2026, 9:51 AM
Active