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] 2025 OMEGA Speedmaster Moonwatch Pro White 310.30.42.50.04.001 Full Set

2025 OMEGA Speedmaster Moonwatch Pro White 310.30.42.50.04.001 Full Set

For sale is a classic Omega Speedmaster Moonwatch Pro with a white dial and a December 2025 date.

  • Condition: Very good condition, with a mark on the side of the case
  • Msrp: $9,100 + Tax
  • Shipping: Fully insured overnight via FedEx to the closest FedEx Office
Posted at
Jan 18, 2026, 3:12 PM
Active
[WTS] Omega Speedmaster Pilot (332.10.41.51.01.002) | 2025

Omega Speedmaster Pilot (332.10.41.51.01.002) | 2025

This Omega Speedmaster Pilot is a recently released version of the Speedmaster, featuring an automatic Caliber 9900 movement and a 40.85mm steel case.

  • Condition: Excellent, lightly worn
  • Case Size: 40.85 mm diameter
  • Bracelet Material: Steel
  • Crystal: Sapphire
Posted at
Jan 18, 2026, 3:11 PM
Active
[WTS] Omega Speedmaster Professional Sapphire Sandwich $6680 2025

Omega Speedmaster Professional Sapphire Sandwich $6680 2025

This Omega Speedmaster Professional is a unique variant known as the Sapphire Sandwich.

  • Price: $6680
Posted at
Jan 18, 2026, 12:42 PM
Active
[WTS] Omega Speedmaster Professional Sapphire Sandwich 2025 $6680

Omega Speedmaster Professional Sapphire Sandwich 2025 $6680

a rare Omega Speedmaster Professional with a sapphire sandwich case and a 2025 model number.

  • Year of production: 2025
Posted at
Jan 18, 2026, 12:34 PM
Active
[WTS] Omega Speedmaster 39mm olympic 3516.20

Omega Speedmaster 39mm olympic 3516.20

Omega - 3516.20 · $2,100
This is a beautiful Omega Speedmaster limited Olympic edition, with minimal signs of wear and coming with an Omega red travel case.

  • Condition: very good condition with minimal sign of wear
  • Case size: 39mm
  • Movement accuracy: -+4/day
  • Included accessories: omega red travel case
Posted at
Jan 17, 2026, 7:29 PM
Active
[WTS] Omega Speedmaster 3861 Bracelet

Omega Speedmaster 3861 Bracelet

Omega - 3861 · $750
This Omega Speedmaster is a brand new model with additional features such as tool free microadjust and it has not been worn.

  • Condition: New, never worn
  • Links included: true
  • Clasp condition: plastic still on
  • Adjustment method: tool free microadjust
Posted at
Jan 17, 2026, 4:39 PM
Active
[WTS] Omega Speedmaster Professional Sapphire Sandwich – Cal. 1863 – New OEM Omega 3861 Bracelet With Quick Adjust Clasp – Spiralwinder Dot Over 90 Ceramic Bezel

Omega Speedmaster Professional Sapphire Sandwich – Cal. 1863 – New OEM Omega 3861 Bracelet With Quick Adjust Clasp – Spiralwinder Dot Over 90 Ceramic Bezel

This Omega Speedmaster Professional Sapphire Sandwich is powered by the highly regarded caliber 1863 and features a Spiralwinder Ceramic DON tachymètre bezel. The watch has been upgraded with a new OEM 3861 bracelet installed at the Omega Boutique.

  • Condition: Excellent
  • Movement: Cal. 1863
  • Crystal: Sapphire front & back
  • Bezel: Spiralwinder Ceramic DON (Dot Over Ninety) tachymètre bezel
Posted at
Jan 17, 2026, 11:51 AM
Active
[WTS] OMEGA Speedmaster 🌘🌑“Dark Side of the Moon”Co-Axial Master Chronometer Chronograph|Ref. 310.92.44.51.01.001| 2025 | Full Set in Like New Condition

OMEGA Speedmaster 🌘🌑“Dark Side of the Moon”Co-Axial Master Chronometer Chronograph|Ref. 310.92.44.51.01.001| 2025 | Full Set in Like New Condition

OMEGA - 310.92.44.51.01.001 · $11,750
The OMEGA Speedmaster 'Dark Side of the Moon' is a modern icon that blends OMEGA's space-faring heritage with advanced materials, crafted entirely in black ceramic for exceptional scratch resistance and lightweight wearability.

  • Condition: Excellent
  • Case size: 44.25 mm
  • Set: Full set (box, papers, 5 year warranty)
  • Movement: Co-Axial Master Chronometer Calibre 9908
Posted at
Jan 17, 2026, 11:13 AM
Active
[WTS] Omega Speedmaster. 39mm. Special Dial.

Omega Speedmaster. 39mm. Special Dial.

Omega - Speedmaster · $2,450
A 39mm Omega Speedmaster with a special texture dial is being sold. The watch is located in NJ USA and comes with the option for a Facetime viewing.

  • Case diameter: 39mm
  • Movement type: automatic
Posted at
Jan 17, 2026, 10:20 AM
Active