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 311.93.44.51.99.001 Grey Side of the Moon 2018 Year

Omega Speedmaster 311.93.44.51.99.001 Grey Side of the Moon 2018 Year

This Omega Speedmaster Grey Side of the Moon is a 2018 model, featuring a pre-owned watch in excellent condition with minimal scratches.

  • Condition: Preowned, minor hairline scratches and possibly a clean crystal with marks under strong magnification
  • Year: 2018
  • Shipping method: FedEx, insured, 2-day shipping
Posted at
Oct 23, 2025, 1:25 AM
Active
[WTS] Omega OEM Speedmaster Black Rubber Strap OEM Deployant Clasp (Reserved Post)

Omega OEM Speedmaster Black Rubber Strap OEM Deployant Clasp (Reserved Post)

A black rubber strap for the Omega Speedmaster Professional with a stainless steel deployant clasp, available for sale.

Posted at
Oct 22, 2025, 9:28 PM
Active
[WTS] Omega Speedmaster. Mother of pearl dial. 39mm. Sapphire Crystal. Auto. 🔥

Omega Speedmaster. Mother of pearl dial. 39mm. Sapphire Crystal. Auto. 🔥

Omega - Speedmaster · $2,650
A rare Omega Speedmaster with a mother of pearl dial and sapphire crystal, available for sale in excellent condition.

  • Diameter: 39mm
  • Movement: auto
Posted at
Oct 22, 2025, 8:45 PM
Active
[WTS] 2023 Omega Speedmaster Moonwatch Professional 310.32.42.50.01.001 - Full Set

2023 Omega Speedmaster Moonwatch Professional 310.32.42.50.01.001 - Full Set

A beautiful example of the iconic Omega Speedmaster Moonwatch Professional from 2023, featuring a clean and sporty design.

  • Condition: Excellent preowned condition
  • Material: Hesalite
  • Size: 42mm diameter
  • Scope of delivery: Complete set, inner/outer boxes, all 3 cards, hang tag, extra strap
Posted at
Oct 22, 2025, 8:28 PM
Active
[WTS]🔥OMEGA SPEEDMASTER MOONWATCH PROFESSIONAL SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 10/2025 WITH STICKERS!!!🔥

🔥OMEGA SPEEDMASTER MOONWATCH PROFESSIONAL SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 10/2025 WITH STICKERS!!!🔥

A brand new, unworn OMEGA Speedmaster Moonwatch Professional Sapphire Sandwich with a black dial and stainless steel case.

  • Condition: Brand new/unworn
  • Case Size: 42mm diameter
  • Material: Stainless Steel
Posted at
Oct 22, 2025, 8:18 PM
Active
[WTS] Omega Speedmaster Chronograph Broad Arrow Tokyo Olympic 2020

Omega Speedmaster Chronograph Broad Arrow Tokyo Olympic 2020

The Omega Speedmaster Chronograph Broad Arrow Tokyo Olympic 2020 features a stainless steel case with a clean white dial, bold legible arabic numerals, and broad arrow hands. The chronograph hand reveals the Olympic rings, and the watch is powered by an automatic Co-Axial calibre 3313.

  • Condition: Minimal wear and light polish on bracelet and clasp
  • Case size: 42mm diameter x 48 height
  • Lug width: 20mm
  • Wrist size recommendation: 7.8in
Posted at
Oct 22, 2025, 8:07 PM
Active
[WTS] Omega Speedmaster Two Tone Reduced

Omega Speedmaster Two Tone Reduced

Omega - 3714.20.80 · $2,500
A two tone Omega Speedmaster with a white dial and gold subdials, featuring an 18k gold bezel.

  • Condition: Good, some wear on the case and bezel
  • Movement: Cal 1140
  • Size: 39mm diameter
Posted at
Oct 22, 2025, 7:51 PM
Active
[WTS] Omega Speedmaster Reduced - Mother of Pearl - White

Omega Speedmaster Reduced - Mother of Pearl - White

A super rare and unique Omega Speedmaster with a Mother of Pearl dial that 'pops like no other watch' is for sale. The crystal looks clean, but the case and bezel could benefit from polishing.

  • Condition: Decent condition, light scratching on case, hairlines on bezel
  • Case material: Steel
  • Dial color: Mother of Pearl White
Posted at
Oct 22, 2025, 5:03 PM
Active
[WTS] Omega Speedmaster CK2998 Limited Edition “Blue Panda” - Full Set - Price Reduced ‼️✈️

Omega Speedmaster CK2998 Limited Edition “Blue Panda” - Full Set - Price Reduced ‼️✈️

Omega - CK2998 · $7,395
This Omega Speedmaster CK2998 Limited Edition 'Blue Panda' is a modern classic with a striking design. It features a 40mm stainless steel case and an opaline silver dial with blue subdials. The watch comes complete with its outer box, inner box, instruction manual, card sleeve, international warranty card, and pictograms card.

  • Condition: Excellent, barely worn
  • Case Size: 40mm diameter
  • Movement: Manual winding OMEGA calibre 1861
Posted at
Oct 22, 2025, 4:35 PM
Active