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

Omega Speedmaster Professional Moonwatch ( 310.30.42.50.01.001 ) - Full Kit

Omega - 310.30.42.50.01.001 · $4,850

This is a 42mm Omega Speedmaster Professional Moonwatch with a complete set.

Condition: great condition, small scratches around the watch
Material: stainless steel
Size: 42mm diameter

Posted at

Apr 28, 2025, 3:49 PM

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Omega Speedmaster Racing – Complete Set

Omega - 329.32.44.51.06.001 · $6,335.006

This Omega Speedmaster Racing Master Chronometer features a 44.25mm stainless steel case on a brown leather strap with a black ceramic bezel ring and is powered by the OMEGA Co-Axial Master Chronometer 9900 movement.

Condition: Excellent, Mint condition with few signs of wear
Case material: Stainless Steel
Diameter: 44.25 mm
Movement type: Self-winding

Posted at

Apr 28, 2025, 3:48 PM

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View listing on WatchUseek

Omega Speedmaster Professional Sapphire 1863 311.30.42.30.01.006 - $4,195 💵

Omega - 311.30.42.30.01.006 · $4,195

A Omega Speedmaster Moonwatch Professional watch functions perfectly mechanically and is a great everyday option.

Condition: amazing condition
Bracelet size: fits a 6.5 inch wrist

Posted at

Apr 28, 2025, 3:41 PM

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Omega Speedmaster Professional 3590.50 - $3650 Shipped ✈️

Omega - 3590.50 · $3,650

a beautiful Omega Speedmaster Professional Moonwatch with Tritium dial and Calibre 861 movement.

Condition: good working order, with some cosmetic wear as seen in photos
Wrist size: 7.5inch

Posted at

Apr 28, 2025, 3:30 PM

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2000 Omega Speedmaster 'Reduced' Ref. 3510.50 with Box & Papers

Omega - 3510.50 · $3,250

The Omega Speedmaster Reduced Automatic is a pre-owned watch in excellent condition, measuring 39mm and featuring a Luminova dial.

Condition: Excellent (very little to no signs of wear)
Movement: Automatic
Case Width: 39mm
Straps Length: 7.25 inches

Posted at

Apr 28, 2025, 2:35 PM

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2013 Omega Speedmaster 'Reduced' Ref. 3539.50 with Papers | Serviced 2025

Omega - 3539.50 · $4,250

This Omega Speedmaster Reduced Automatic features a 39mm case and is in excellent pre-owned condition, with a scratch resistant sapphire crystal and upgraded fold over clasp.

Condition: Excellent (little to no signs of wear)
Movement: Automatic
Case width: 39mm diameter
Straps length: 7.50 inches (strap)

Posted at

Apr 28, 2025, 2:30 PM

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JAN 2025 Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001 Speedy

Omega - 329.30.44.51.01.001 · $5,800.006

This Omega Speedmaster racing watch is a 2025 model with a 44.25mm case, featuring a steel chronograph function.

Condition: Mint and full set
Case diameter: 44.25mm
Serial number: blurred for security/privacy reasons

Posted at

Apr 28, 2025, 11:12 AM

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OMEGA Speedmaster '57 40.5mm Blue Dial 332.10.41.51.03.001 Complete Set 2023

OMEGA - 332.10.41.51.03.001 · $7,200

The OMEGA Speedmaster '57 features a stainless steel case and a blue dial, inspired by the 1957 original. It is a modern take on a classic design.

Condition: Excellent condition with little to no signs of wear.
Year Of Production: 2023
Case Size: 40.5mm
Set Contents: inner box,outer box,warranty card,pictogram,master chronometer,card sleeve,instruction booklet,hang tag

Posted at

Apr 28, 2025, 11:03 AM

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(Omega Speedmaster Professional Moonwatch)

Omega - 31133423001001 · $4,200

This Omega Speedmaster Professional Moonwatch is a beautifully maintained watch with near perfect condition.

Condition: near perfect
Buckle type: OEM deployant

Posted at

Apr 28, 2025, 10:54 AM

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