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] Omega Speedmaster Sapphire Sandwich

Omega Speedmaster Sapphire Sandwich

Omega - 31030425001002 · $6,000
A Omega Speedmaster Sapphire Sandwich, a manual winding watch featuring an original box and papers. The watch has a 42mm size.

  • Year: 2025
  • Size: 42mm diameter
  • Bracelet condition: barely used
Posted at
Jan 9, 2026, 4:22 PM
Active
[WTS] OMEGA SPEEDMASTER PROFESSIONAL [WHITE][EXCELLENT CONDITION AND BARELY WORN] $7,700 OBO

OMEGA SPEEDMASTER PROFESSIONAL [WHITE][EXCELLENT CONDITION AND BARELY WORN] $7,700 OBO

A well-maintained Omega Speedmaster Professional in excellent condition, barely worn.

  • Condition: EXCELLENT CONDITION AND BARELY WORN
  • Payment methods: PayPal, Zelle, Venmo
Posted at
Jan 9, 2026, 4:13 PM
Active
[WTS] 1979 Omega Speedmaster Professional Moon Watch

1979 Omega Speedmaster Professional Moon Watch

This 1979 Omega Speedmaster Professional Moon Watch is in excellent condition, featuring its original comfort stretch 1039 bracelet and a manual wind calibre 861 movement. The watch has aged nicely, with great lume and dial details.

  • Condition: Excellent with fine scratches, one visible dent in the bracelet and inconsistent timegraph results
  • Bracelet type: Comfort stretch 1039
  • Case size: 42mm diameter
  • Crown size: 43.2mm
Posted at
Jan 8, 2026, 2:55 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega - 145.022-69 · $5,425
This Omega Speedmaster Moonwatch presents beautifully in full steel, with a strong and sharp case and original step dial displaying warm yellow patina.

  • Condition: serviced, excellent definition
  • Size: 42mm diameter
  • Year: 1969
  • Movement service date: November 2022
Posted at
Jan 8, 2026, 2:54 PM
Active
[WTS] Omega Speedmaster Date 32105000 Full Set 3000USD

Omega Speedmaster Date 32105000 Full Set 3000USD

Omega - 32105000 · $3,000
A 2009 Omega Speedmaster Date 40mm watch that has been worn only a handful of times. It comes with the box and papers, one additional link, and is in great condition.

  • Condition: Overall great condition, a couple of light scratches on the side of the bezel and some scuffs on the band and bottom of the case.
  • Length: 7.5"
  • Purchase Year: 2023
  • Service History: Not serviced since purchase
Posted at
Jan 8, 2026, 1:08 PM
Active
[WTS] Omega Speedmaster Professional 3861 Sapphire Sandwich 310.30.42.50.01.002

Omega Speedmaster Professional 3861 Sapphire Sandwich 310.30.42.50.01.002

Additional details not provided.

  • Item: Sapphire Sandwich
Posted at
Jan 8, 2026, 2:50 AM
Active
[WTS] Omega Speedmaster Day Date MK40

Omega Speedmaster Day Date MK40

Omega - 3520.53.00 · $2,000
Up for sale is my Omega Speedmaster Day-Date MK40, reference 3520.53.00. A cult-favorite Speedy with serious ‘90s charm and one of the most wearable Speedmaster configurations ever made.

  • Condition: good
  • Case size: 39mm
  • Movement type: automatic chronograph
Posted at
Jan 7, 2026, 9:07 PM
Active

2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

  • Condition: Minty fresh
  • Case size: 42mm
  • Year: 2022
  • Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Posted at
Apr 7, 2025, 2:59 PM
Active
Omega Speedmaster Chronograph  - Blue - Stainless Steel - 38mm - Mint

Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint

This Omega Speedmaster Chronograph features a 38mm stainless steel case, blue dial, and automatic movement.

  • Condition: Pre-Owned - Mint
  • Case size: 38mm diameter
  • Bracelet type: Stainless Steel
  • Dial color: Blue
Posted at
Apr 5, 2025, 6:13 PM
Active