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 3513.50 - 39mm - Complete Set

Omega - 3513.50 · $2,400

This Omega Speedmaster reference 3513.50 is a complete set that comes with original boxes, manuals, warranty card, and hang tag. It features a black sunburst dial with date and automatic chronograph movement.

Condition: Good condition with small, barely noticeable dent on bezel between tachymeter and crystal.
Case Size: 39mm
Lug To Lug: 44.5mm
Lug Width: 18mm

Posted at

May 4, 2025, 11:31 AM

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Omega Speedmaster Moonwatch Blue Side of the Moon Full Set 304.93.44.52.03.001

Omega - 304.93.44.52.03.001 · $8,495

This is a Omega Speedmaster Moonwatch - Blue Side of the Moon, a high-end timepiece in excellent condition, running well and not in need of service.

Condition: Excellent condition with no signs of wear
Year: 2020
Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Master Chronometer Card, Card Holder, Operating Instructions Manual

Posted at

May 4, 2025, 11:07 AM

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Omega Speedmaster Professional. 3570.50.

Omega - 3570.50 · $3,495

This is a Moonwatch Omega Speedmaster Professional, known for its strong lume and overall quality.

Condition: nice condition
Lume: strong
Shipping: Fedex with insurance

Posted at

May 4, 2025, 11:06 AM

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Omega Speedmaster 🎰Casino Dial 🎰, 3210.52.00, 40mm

Omega - 3210.52.00 · $2,525

Additional Details: Omega Speedmaster Casino Dial, 40mm case size, comes in great condition with minor wear on the bracelet.

Condition: preowned with minor wear mainly on the bracelet
Size: 40mm diameter
Warranty card included: yes

Posted at

May 4, 2025, 10:24 AM

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Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650

Omega - 304.93.44.52.03.002 · $10,650

The Omega Speedmaster Moonphase features an Aventurine Dial with a blue ceramic finish.

Condition: Brand New, In Box (BNIB)
Diameter: 44mm

Posted at

May 3, 2025, 9:43 PM

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Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650

Omega - Moonphase · $10,650

This Omega Speedmaster features an Aventurine dial and comes with a certificate of authenticity.

Condition: Brand new
Diameter: 42mm

Posted at

May 3, 2025, 9:43 PM

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Uncle Seiko US1479 Bracelet For Omega Speedmaster Professional (2 Clasps Included)

Uncle Seiko - US1479 · $140

A high-quality bracelet designed for Omega Speedmaster Professional watches, featuring a full bracelet, all links, and two clasps.

Condition: Like new
Includes: bracelet, links, pressure-based clasp, button-based clasp, Uncle Seiko bag, 2 x 20mm lugs
Shipping: CONUS only

Posted at

May 3, 2025, 5:40 PM

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Omega Speedmaster Moonwatch Professional Sapphire White Dial, Complete Set

Omega - 310.30.42.50.04.001 · $7,295

The Omega Speedmaster Moonwatch Professional Sapphire White Dial is a 42mm stainless steel watch with a white dial and chronograph function, featuring a tachymetre bezel.

Condition: Excellent Pre-Owned
Case size: 42mm diameter
Bezel type: Tachymetre bezel

Posted at

May 3, 2025, 5:37 PM

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