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

Omega Speedmaster Sapphire Sandwich Full kit

Omega - Sapphire Sandwich Full kit · $4,600

2017 Omega Speedmaster Sapphire Sandwich. Keeps exceptional time and runs without issues.

Condition: Used but great condition
Year: 2017
Location: Located in Canada (shipped from US to avoid tariffs)
Shipping Methods: CONTUS or Canada PP FF or Wire

Posted at

Apr 28, 2025, 7:27 AM

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Omega Speedmaster Triple Date MK40 3513.50 39mm

Omega - 3513.50 · $2,300

The Omega Speedmaster MK40 3513.53 is a testament to timeless luxury and precision, featuring triple calendar functionality, chronograph features, date indicator, and tachymeter bezel.

Condition: great condition
Size: 39mm diameter
Weight: not provided
Case material: stainless steel

Posted at

Apr 28, 2025, 12:33 AM

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Brand New Omega Speedmaster Moonwatch Professional White Dial Reference 310.30.42.50.04.001 $7,800

Omega - 310.30.42.50.04.001 · $7,800

This Omega Speedmaster Moonwatch Professional features a beautiful white dial, comes with the full kit and warranty card, and is still under sticker.

Condition: Brand new and unworn
Location: Charleston, SC
Shipping: FedEx Overnight Shipping

Posted at

Apr 27, 2025, 7:03 PM

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01/2025 Omega Speedmaster Sapphire Complete Set * $6,250 + label*

Omega - 310.30.42.50.01.002 · $6,250

This is a 2025 Speedmaster Sapphire sandwich Complete Set with micro-adjust clasp, including all cards and hang tag, travel case, literature, and cleaning cloth.

Condition: Great condition, no issues
Year: 1/2025
Case contents: All cards and hang tag, travel case, Speedmaster literature, cleaning cloth

Posted at

Apr 27, 2025, 6:59 PM

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Omega Speedmaster Moonwatch Professional Hesalite, 310.32.42.50.01.001

Omega - 310.32.42.50.01.001 · $4,400

This Omega Speedmaster Moonwatch Professional Hesalite is in excellent condition with minimal signs of wear and comes with a canvas strap, full set including warranty.

Condition: excellent with minimal signs of wear
Water Resistance: 30m
Crystal Type: Hesalite
Movement: Cal 3861

Posted at

Apr 27, 2025, 5:41 PM

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Omega Speedmaster Snoopy in RARE Full Collector Set

Omega - 3578.51.00 · $15,395

The Omega Speedmaster Snoopy is a rare and limited edition watch released in 2003 to celebrate the Silver Snoopy award given to Omega for its involvement in the Apollo 13 mission. The watch features an iconic hand-wound cal 1861 chronograph movement and a stunning dial with limited edition Snoopy artwork on the back.

Condition: Ultra clean condition, with minimal signs of wear
Movement: Iconic hand-wound calibre 1861 chronograph
Bracelet Length: >7.5 inches
Case Size: 42MM stainless steel case

Posted at

Apr 27, 2025, 4:50 PM

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Omega Speedmaster hesalite 3861

Omega - 3861 · $5,300

2022 Omega Speedmaster Professional hesalite model, comes with warranty cards, box, manuals, and price tag.

Warranty Cards Box Manuals: included
Spiral Winder: yes
Sapphire Case Back: yes

Posted at

Apr 27, 2025, 4:37 PM

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Omega SPEEDMASTER ANNIVERSARY SERIES FIRST OMEGA IN SPACE 2024 FULL SET

Omega - 31030405006001 · $7,325.007

2024 39.7mm Omega FOIS Speedmaster Anniversary Series First Omega in Space, Stainless Steel with Sapphire Crystals & Dark Blue Dial.

Condition: Excellent Condition
Movement: Omega 3861 Manual Winding Movement
Diameter: 39.7mm

Posted at

Apr 27, 2025, 1:05 PM

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Omega Speedmaster ’57 - Under Warranty - $6,799 Shipped - Omega Tariff Prices Increase Incoming

Omega - 332.10.41.51.03.001 · $6,799

A vintage-correct Omega Speedmaster '57 Co-Axial Master Chronometer Chronograph featuring a stunning sunburst blue sandwich dial and powered by Omega's new-generation Caliber 9906 manual-wind chronograph movement.

Condition: Excellent condition with light signs of wear
Movement: Omega Caliber 9906 (Hand-wound, Co-Axial Escapement, Master Chronometer Certified)
Case size: 40.5mm
Thickness: ~13mm

Posted at

Apr 27, 2025, 12:39 PM

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