Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold - Ruby / Black - Ruby / Bracelet

Reference 310.55.42.50.51.001

Omega Speedmaster Professional Moonwatch 3861 Sedna Gold - Ruby / Black - Ruby / Bracelet

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold is a stunning blend of luxury and functionality, with its Sedna gold construction and intricate chronograph features. The watch's sheer elegance is undeniable, with a black sunburst finish contrasting beautifully with gem-set indexes and ruby accents. Certified as a Master Chronometer by METAS, the Omega caliber 3861 movement is an engineering marvel, resistant to magnetic fields up to 15,000 gauss. With small seconds, hours, and minutes hands, the chronograph functionality offers precision timing. The watch's durability is also noteworthy, with sapphire glass adding scratch resistance. The Sedna gold bracelet ensures a secure fit, while its adjustability makes it comfortable for wearers of all wrist sizes. This timepiece is not just a luxury item but a conversation starter, status symbol, and piece of horological history.

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Key Features

Omega caliber 3861 movement with Co-Axial escapement and silicon balance spring
Sedna gold construction with gem-set indexes and ruby accents
50m water resistance with sapphire glass scratch resistance
Chronograph functionality with small seconds, hours, and minutes hands
Adjustable Sedna gold bracelet for secure fit on all wrist sizes

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Sedna Gold - Ruby / Black - Ruby / Bracelet

Reference

310.55.42.50.51.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

Sedna Gold 42mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

Current Listings

2007 Omega Speedmaster Date Chronograph 3210.50 - $2,999

Omega - 3210.50 · $2,999

A 2007 Omega Speedmaster Date Chronograph, in good overall condition, with a stainless steel bracelet and black dial.

Condition: Good overall condition, light wear on case and bracelet
Serial number: 81.6M (circa 2007)
Movement: Automatic chronograph
Dial color: Black

Posted at

Jan 16, 2026, 2:09 AM

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📣🚨OMEGA Speedmaster “FOIS” 311.32.40.30.01.001 EXCELLENT CONDITION! $4950 shipped 🚨📣

OMEGA - 311.32.40.30.01.001 · $4,950

This is a preowned Omega Speedmaster 'First Omega in Space' in excellent condition, featuring a manual wind movement and complete set, including box and papers.

Condition: Excellent / like new
Movement: Caliber 1861
Case Size: 39.7mm diameter
Box Condition: shows wear

Posted at

Jan 15, 2026, 10:36 PM

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OEM Omega Speedmaster Professional Bracelet and OEM Sinn H-Link Bracelet

Omega · $450

A collection of Omega and Sinn watch accessories, including an OEM Omega Speedmaster Professional bracelet and an OEM Sinn H-Link bracelet. The Omega bracelet is in mint condition and can fit up to a 7.5 inch wrist when attached to the watch.

Condition: Mint
Bracelet type (omega): Professional Bracelet
Sinn h-link: fully linked

Posted at

Jan 15, 2026, 8:40 PM

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Omega Speedmaster Chronograph Date 40mm 3212.80 | 2013 Complete Set

Omega - 3212.80 · $2,999

2013 Omega Speedmaster Chronograph Date with a 40mm case, featuring a manual winding movement and date function.

Condition: Excellent Pre-Owned Condition
Year: 2013
Bracelet links: 15

Posted at

Jan 15, 2026, 7:11 PM

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Omega Speedmaster Chronograph 38 324.33.38.40.04.001 | 2013 Full Set

Omega - 324.33.38.40.04.001 · $2,999

This is a 2013 Omega Speedmaster Chronograph 38 with crystal and bezel clean, slight wear on the case and clasp.

Condition: Pre-Owned with slight wear on case and clasp
Year Of Manufacture: 2013
Service History: Unknown

Posted at

Jan 15, 2026, 7:07 PM

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🔥Omega Speedmaster 42MM "Silver Snoopy Award"- Ref 310.32.42.50.02.001 (NEW / UNWORN : DEC 2025 COMPLETE SET)🔥

Omega - 310.32.42.50.02.001 · $15,299

This Omega Speedmaster features a beautiful white dial and comes in a 42mm stainless case size. It is part of the Silver Snoopy Award collection, specifically from December 2025.

Condition: Brand New/Unworn
Case Size: 42mm diameter
Year: 2025

Posted at

Jan 15, 2026, 6:13 PM

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2015 Omega Speedmaster Moonwatch 44.25mm 311.30.44.51.01.002 Black Dial - $5,000

Omega - 311.30.44.51.01.002 · $5,000

The watch being listed is a 2015 Omega Speedmaster Moonwatch with a 44.25mm black dial, featuring a stainless steel bracelet and leather strap.

Condition: Excellent overall condition
Bracelet condition: Stainless steel bracelet basically brand new, still has factory sticker on clasp
Included accessories: Original Omega Double boxed,Box and Papers - Yes,International Warranty card dated 2015,Pictograms Card with Leather Card holder,Operating Instructions booklet,Omega Hang Tag
Wrist size: 8.25inch

Posted at

Jan 15, 2026, 5:57 PM

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Omega Speedmaster 3511.50 Reverse Panda JAPAN EDITION

Omega - 3511.50 · $2,150

For sale is an Omega Speedmaster 3511.50 Reverse Panda JAPAN EDITION in great condition, with a clean crystal and running properly.

Condition: great condition
Payment Methods Accepted: pretty much every payment method including crypto
Local Meeting Available: yes
Payment Method Not Accepted: PayPal

Posted at

Jan 15, 2026, 5:39 PM

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Omega Speedmaster Professional Moonwatch 3573.50

Omega - 3573.50 · $4,550

This Omega Speedmaster Professional Moonwatch is in excellent condition with hardly any signs of wear.

Condition: Excellent condition, hardly any signs of wear
Payment Methods Accepted: Pretty much every payment method including crypto with a small fee
No Paypal Accepted: true
Other Payments: cash, credit cards, etc.

Posted at

Jan 15, 2026, 5:32 PM

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