Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet

Reference 310.55.42.50.13.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet is a masterpiece of horology, blending art, history, and cutting-edge technology. Crafted from Sedna Gold, this watch boasts a unique color that's both warm and striking. Its round shape and sunburst brown finish give it a luxurious feel, while the diamond-set bezel adds a touch of elegance. The 3861 is equipped with a chronograph feature, allowing you to measure elapsed time with precision. At its heart lies the Omega caliber 3861, an updated version of the legendary caliber 861/1861, featuring a co-axial escapement and silicon balance spring for accuracy and reliability. Master Chronometer certified by METAS, this watch has undergone rigorous testing to withstand magnetic fields of up to 15,000 gauss. Its sleek design and exceptional craftsmanship make it a standout in any collection. Whether you're at a formal event or a casual outing, this watch is sure to turn heads.

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Key Features

Sedna Gold case
Manual-winding chronograph movement
Co-axial escapement and silicon balance spring
Master Chronometer certified by METAS
Diamond-set bezel
Water resistance up to 50 meters
42.00 mm diameter and 13.18 mm height

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Sedna Gold - Diamond / Brown / Bracelet

Reference

310.55.42.50.13.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

Sedna Gold 42mm

Dial Color

Brown

Crystal

Sapphire

Water Resistance

Current Listings

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Omega - 329.33.44.51.01.001 · $5,800

This Omega Speedmaster racing watch features a 44.25mm case size and is still under warranty.

Condition: Good condition
Case size: 44.25mm

Posted at

Apr 27, 2025, 11:13 AM

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Omega Speedmaster. 42mm. Special Edition.

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A Special Edition Omega Speedmaster Chronograph with a 42mm dial, characterized by its unique design and features.

Size: 42mm
Dial type: cool dial

Posted at

Apr 27, 2025, 10:22 AM

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Omega Speedmaster Mark II Rio Special Edition

Omega - 522.10.43.50.01.001 · $3,800.004

A 2016 Omega Speedmaster Mark II Rio Olympics Special Edition, featuring a steel case, black crystal, and scratch-resistant sapphire crystal. It has a water resistance of 100m and is powered by the self-winding Omega caliber 3330.

Condition: Outstanding condition
Case diameter: 42.4 x 46.2mm
Thickness: 14.9mm
Water resistance depth rating: 100m

Posted at

Apr 26, 2025, 6:08 PM

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View listing on WatchUseek

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Omega - 175.0034 · $14,950.001

This Omega Speedmaster features a white dial and is equipped with chronograph, date, day, and moonphase functions. The watch has a 18K yellow gold case measuring 39mm in size.

Condition: 90%
Case material: 18K Yellow Gold
Movement type: Mechanical Automatic

Posted at

Apr 26, 2025, 12:04 PM

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Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' 3861 - New 2025

Omega - 310.30.42.50.01.002 · $6,500.007

The Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' is a new iconic watch featuring sapphire crystal and a sapphire see-thru caseback showcasing the new caliber 3861 movement.

Condition: New unworn
Case size: 42mm diameter
Movement: Omega Caliber 3861, manual-winding chronograph
Crystal: sapphire crystal

Posted at

Apr 26, 2025, 11:30 AM

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Rare Omega Speedmaster Professional Moonwatch Moonphase 🌕⏱ – $4,250 Shipped! 🚀

Omega - Speedmaster Professional Moonwatch Moonphase · $4,250

The Omega Speedmaster Professional Moonwatch Moonphase features a manual-wind Caliber 3576.50 movement and comes on its original stainless steel bracelet, which fits up to a 7-inch wrist.

Condition: excellent with minor signs of wear
Case size: 42mm diameter
Movement type: manual wind

Posted at

Apr 26, 2025, 11:08 AM

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Omega Speedmaster 3513.50, 39mm - Full Set - Price Drop

Omega - 3513.50 · $2,400

This Omega Speedmaster Date features a 39mm stainless steel case, black sunburst dial with date window at 3 o'clock and is perfect for everyday use or building your collection.

Condition: Good, with a small dent on the bezel between the tachymeter and crystal
Case Size: 39mm
Lug To Lug: 44.5mm
Lug Width: 18mm

Posted at

Apr 26, 2025, 11:04 AM

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Omega Speedmaster 40mm Coaxial Automatic w/ OEM rubber strap and bracelet

Omega - Speedmaster 40mm Coaxial Automatic · $3,450

This Speedmaster racing automatic is a beautiful timepiece with excellent condition. It comes with various accessories including an OEM rubber strap, bracelet, and more.

Condition: Excellent condition
Case Size: 40mm
Movement Type: Coaxial Automatic

Posted at

Apr 26, 2025, 10:49 AM

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Omega Speedmaster Bracelet. Clean.

Omega - Speedmaster · $675

I am selling my Omega Speedmaster Bracelet, which is in very clean condition. I bought it directly from Omega for $800 and have the invoice to prove it.

Condition: Very clean
Purchase Price: $800
Invoice Included: true
Shipping Cost: additional

Posted at

Apr 26, 2025, 9:54 AM

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