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 - .002 · $5,725

This listing is for a Omega Speedmaster Sapphire Sandwich .002 Reference. The additional details link provides more information about the watch.

Posted at

Apr 26, 2025, 9:45 AM

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Omega Speedmaster Pro, moonwatch, sapphire sandwich, 3861 movement (2021)

Omega - 310.30.42.50.01.002 · $5,550

A very quick catch and release for me. Up for sale is an Omega Speedmaster Professional 'Sapphire Sandwich' featuring the 3861 movement, known as the moonwatch.

Condition: Excellent, minor signs of wear
Movement: 3861
Bracelet Size: sized to fit, includes all links
Shipping: CONUS only

Posted at

Apr 26, 2025, 8:51 AM

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Condition: Excellent condition with minimal wear
Movement: Omega Caliber 1861 (Manual Wind Chronograph)
Case diameter: 42mm
Lug width: 20mm

Posted at

Apr 26, 2025, 12:41 AM

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Posted at

Apr 25, 2025, 10:30 PM

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A Omega Speedmaster in great condition, featuring a casino dial and measuring 40mm in diameter.

Condition: preowned with minor wear
Length of included links: 7.75 inches
Warranty card included: yes

Posted at

Apr 25, 2025, 9:40 PM

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A 2017 Omega Speedmaster Big Box kit with extras, including exhibition case, original back case, and multiple straps.

Condition: Excellent, owned for over 2 years
Age of additional bracelet: less than 6 months
Straps included: 3
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Posted at

Apr 25, 2025, 9:15 PM

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Omega - 310.32.42.50.02.001 · $14,250

A highly sought-after Omega Speedmaster '50th Anniversary Silver Snoopy Award' that commemorates the Apollo 13 mission and NASA's Silver Snoopy Award, blending history and horology in a stunning design.

Condition: Excellent pre-owned
Case Size: 42mm diameter
Case Material: Stainless Steel
Strap Material: Blue coated nylon fabric

Posted at

Apr 25, 2025, 8:56 PM

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Condition: good condition for its age with some normal wear on the case and bezel
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Case size: 39mm diameter
Bezel material: gold

Posted at

Apr 25, 2025, 8:35 PM

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

Omega - 310.30.42.50.01.002 · $6,500

The Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' features a sapphire crystal and see-thru caseback with the new caliber 3861 movement. It comes on a stainless steel bracelet and has a manual-winding chronograph.

Condition: New, unworn
Case material: stainless steel
Bracelet material: steel
Movement: Caliber 3861, manual-winding chronograph

Posted at

Apr 25, 2025, 3:41 PM

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