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

Current Listings

Omega Speedmaster Moonwatch Professional - White Dial - 310.30.42.50.04.001 - Full Set

Omega - 310.30.42.50.04.001 · $8,125

This Omega Speedmaster Moonwatch Professional features a white dial and is sold as a full set, including box, historical booklet, user manual, microfiber cloth, master chronometer card, warranty card, and more. The watch functions perfectly mechanically and comes in fantastic condition.

Condition: pristine with minor hairlines on clasp, case, and bracelet
Case size: 42mm diameter

Posted at

Mar 13, 2026, 5:33 AM

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Omega Speedmaster Broad Arrow - White Dial + Blued Hands - 42mm - 321.10.42.50.02.001

Omega - 321.10.42.50.02.001 · $4,075

This Omega Speedmaster Broad Arrow features a white dial and blued hands in a 42mm case.

Condition: Fantastic condition with minor hairlines on bracelet, case, and clasp
Case Size: 42mm
Year: 2008

Posted at

Mar 13, 2026, 5:28 AM

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Omega OEM Integrated Speedmaster Rubber Strap + OEM Deployant Clasp – 20mm

Omega - 032Z017245, STZ007387 · $520

A set of Omega OEM accessories for the Speedmaster watch, including a black rubber strap and deployant clasp.

Condition: Excellent condition overall
Material: rubber, stainless steel
Strap taper: 20mm to 16mm

Posted at

Mar 12, 2026, 9:16 PM

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Omega Speedmaster Moonphase 2023 Black 304.30.44.52.01.001 Full Set - $7,795

Omega - 304.30.44.52.01.001 · $7,795

Up for sale is an Omega Speedmaster Moonphase Black, a 2023 model in excellent condition.

Condition: Excellent condition with minimal signs of wear
Year: 2023
Contents: Watch, Inner & Outer Box, Card Holder, International Warranty Card, Pictograms Card, Master Chronometer Card, Instructions Manual

Posted at

Mar 12, 2026, 5:54 PM

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Omega Speedmaster Professional Moonwatch – 2021 – Hesalite – Excellent

Omega - 310.30.42.50.01.001 · $5,150

This is the new generation reference 3861, featuring the updated Master Chronometer movement and classic hesalite crystal, keeping the traditional Moonwatch look.

Condition: Excellent
Case Size: 42mm diameter
Movement: Manual Wind (Omega Caliber 3861)
Crystal: Hesalite

Posted at

Mar 12, 2026, 4:12 PM

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Omega Speedmaster Reduced Two Tone - 39mm - 175.0033 - $2,750 Shipped

Omega - 175.0033 · $2,750

For sale is a Beautiful Omega Speedmaster Reduced, this is the white dial version.

Condition: Great vintage condition, light hairlines on bezel and case
Case size: 39mm
Material: Two Tone
Movement status: Running

Posted at

Mar 12, 2026, 3:18 PM

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Omega Speedmaster 38 Co-Axial Chronograph 324.30.38.50.01.001 – Full Set – $3,800 + shipping

Omega - 324.30.38.50.01.001 · $3,800

The Omega Speedmaster 38 Co-Axial Chronograph features a black dial on the stainless steel bracelet, with typical hairline marks on the bracelet and a small scratch on the clasp. The crystal and dial are clean. This watch comes in its full set.

Condition: great condition with light wear
Bracelet size: not specified
Crystal type: not specified
Dial color: black

Posted at

Mar 12, 2026, 12:19 PM

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Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002 with Box & Manuals

Omega - 310.30.42.50.01.002 · $6,150

This Omega Speedmaster Professional Moonwatch features a stainless steel case, black bezel, and manual wind mechanical movement.

Condition: Nice Preowned Condition with Some Light Scratches on the Case, Bracelet and Buckle
Case dimensions: 42mm diameter
Bezel material: Stainless Steel
Dial color: Black

Posted at

Mar 11, 2026, 7:04 PM

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OMEGA X SWATCH Speedmaster Uranus

Omega · $350

A Speedmaster watch, purchased on vacation in Thessaloniki Greece, that has been worn less than 5 times and is not suited for the seller's lifestyle.

Condition: Very good

Posted at

Mar 11, 2026, 4:20 PM

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