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 Moonwatch Professional Sapphire 3861 (310.30.42.50.01.002) – 2025 Full Set – $6350

Omega Speedmaster Moonwatch Professional Sapphire 3861 (310.30.42.50.01.002) – 2025 Full Set – $6350

This Omega Speedmaster Moonwatch Professional features the Master Chronometer Calibre 3861, a manual wind movement with 50-hour power reserve and anti-magnetic to 15,000 gauss. The watch has a 42mm stainless steel case and black stepped dial.

  • Condition: Excellent overall condition, light signs of wear on the bracelet and clasp
  • Movement: Omega Co-Axial Master Chronometer Calibre 3861 (manual wind, 50-hour power reserve, anti-magnetic to 15,000 gauss)
  • Case size: 42mm
  • Water resistance: 50m
Posted at
Mar 7, 2026, 9:44 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 · $5,250
This Omega Speedmaster Moonwatch presents beautifully in full steel, showcasing a strong and sharp case with thick lugs that retain their original shape.

  • Condition: Serviced with minor polishing in the past
  • Diameter: 42mm
  • Year: 1969
  • Movement: 861 caliber movement
Posted at
Mar 7, 2026, 9:26 PM
Active
[WTS] (Reserved) Omega Speedmaster Broad Arrow

(Reserved) Omega Speedmaster Broad Arrow

A 2000s Omega Speedmaster broad arrow in excellent condition, running well.

  • Condition: pristine condition
  • Year of manufacture: early 2000’s
Posted at
Mar 7, 2026, 8:55 PM
Active
[WTS] Omega Speedmaster ’57 Black Dial (2024) - excellent condition - $5750

Omega Speedmaster ’57 Black Dial (2024) - excellent condition - $5750

A modern interpretation of the original 1957 Speedmaster with a black dial, Broad Arrow hands, and a slimmer case. The watch features a manual wind Co-Axial Master Chronometer movement and has a water resistance of 50m.

  • Condition: excellent
  • Case Size: 40.5mm diameter
  • Thickness: ~12.99 mm
  • Movement Type: manual wind, Co-Axial Master Chronometer
Posted at
Mar 7, 2026, 6:00 PM
Active
[WTS] Omega Speedmaster Moonphase Chrono 18k Sedna Gold & Steel 304.23.44.52.13001 B&P

Omega Speedmaster Moonphase Chrono 18k Sedna Gold & Steel 304.23.44.52.13001 B&P

Omega - 304.23.44.52.13001 · $10,195
This Omega Speedmaster Moonphase Chrono features a brown sun-brushed dial with diamond polished indexes and hands, accurate moonphase indication, and Ceragold tachymeter scale.

  • Movement: Meta certified Co-Axial Master Chronometer 9904
  • Case material: Stainless steel-18K Sedna gold
  • Diameter: 44.25 mm
Posted at
Mar 7, 2026, 4:19 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina Original Step Tritium Dial (Unpolished)

Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina Original Step Tritium Dial (Unpolished)

Omega - 145.022-69 · $5,235
This Omega Speedmaster Professional Moonwatch is a strong example of the highly regarded reference 145.022-69, featuring a razor-sharp case and crisp edges with excellent overall definition.

  • Condition: Unpolished, original condition
  • Size: 42mm
  • Year: 1969
  • Bezel condition: Signs of age and light fading
Posted at
Mar 7, 2026, 2:44 PM
Active
[WTS] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega Speedmaster Grey Side Of The Moon with a grey dial and 44mm case size.

  • Condition: great, with small chip on edge of case back
  • Case Size: 44mm diameter
Posted at
Mar 7, 2026, 1:53 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 Excellent Condition + Serialized Hand Tag

Omega Speedmaster Reduced 3510.50 Excellent Condition + Serialized Hand Tag

Omega - 3510.50 · $2,750
For sale is an Omega Speedmaster Reduced in excellent condition with hardly any signs of wear, it runs great and functions properly.

  • Condition: Excellent Condition
  • Payment Methods Accepted: multiple (including crypto) with small fee
  • Meeting Options: local meetup or shipped
Posted at
Mar 7, 2026, 1:39 PM
Active
[WTS] Omega Speedmaster Racing 329.30.44.51.04.001 COMPLETE SET 2024

Omega Speedmaster Racing 329.30.44.51.04.001 COMPLETE SET 2024

This Omega Speedmaster Racing features a white dial and comes with the complete set, including double boxed packaging and documentation.

  • Condition: Excellent
  • Box and papers included: complete set
  • Warranty card date: 2024
  • Payment methods accepted: crypto, other payment methods
Posted at
Mar 7, 2026, 1:30 PM
Active