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

New 2025 Omega Speedmaster Moonwatch Professional Hesalite Black Dial Full 4/25 Ref: 310.30.42.50.01.001

Omega - 310.30.42.50.01.001 · $5,799

This Omega Speedmaster Moonwatch Professional features a black lacquered dial and is powered by the manual-winding 3861 movement.

Condition: 10/10, Unworn with stickers
Movement: Manual wind
Diameter: 42mm
Water resistance: 50M

Posted at

May 1, 2025, 9:01 AM

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Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

Omega - 311.30.42.30.03.001 · $8,200

The Omega Speedmaster Apollo XVII is a limited edition timepiece commemorating the 45th anniversary of the final moon landing in 1972. This watch features a polished blue ceramic bezel with tachymeter scale, a dial with 18K yellow gold indexes and hour-minute hands coated in Super-LumiNova, and an engraved caseback.

Condition: Very good
Case size: 42mm
Water resistance: 50 meters / 167 feet
Movement: Manual-Winding Chronograph

Posted at

May 1, 2025, 8:44 AM

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Omega Speedmaster Automatic Triple Calendar Chronograph 3220.50 $2199

Omega - 3220.50 · $2,199

A beautiful Omega Speedmaster 3220.50 Triple Calendar Chronometer Chronograph with a 40mm steel case and Valjoux 7751 based automatic movement.

Case size: 40mm
Movement: Valjoux 7751 based automatic
Crystal coating: AR coated sapphire

Posted at

May 1, 2025, 5:41 AM

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Omega Speedmaster Moonwatch White Dial (310.30.42.50.04.001)

Omega - 310.30.42.50.04.001 · $6,950

This Omega Speedmaster Moonwatch features a white dial and is sold with its original boxes, papers, warranty card, pictogram card, and Master chronometer certificate.

Condition: Mint condition
Accessories included: boxes, papers, warranty card, pictogram card, Master chronometer certificate

Posted at

Apr 30, 2025, 10:55 PM

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Omega Speedmaster Reduced Two Tone

Omega - 3714.20.80 · $2,500

A rare two-tone Omega Speedmaster Reduced, in overall good condition for its age, with a white dial and 18k gold bezel.

Condition: good condition with some wear on the case and bezel
Movement: Cal 1140
Size: 39mm diameter
Case material: two tone

Posted at

Apr 30, 2025, 8:55 PM

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Omega Speedmaster Day Date 3521.30 1800$

Omega - Speedmaster Day Date 3521.30 · $1,800

Posted at

Apr 30, 2025, 5:58 PM

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1997 Omega Speedmaster Professional Gemini V (Ref. 345.0022)

Omega - 345.0022 · $8,999

The Omega Speedmaster Professional Gemini V Watch commemorates the NASA Gemini V mission, featuring a unique 9 o'clock sub-dial with the mission patch and a limited release of 150 models.

Condition: Excellent/like new
Case size: 42mm diameter
Bracelet type: Omega 1499 with 842 end pieces
Box papers status: Original inner/outer boxes and booklets present

Posted at

Apr 30, 2025, 4:57 PM

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OEM Omega Rubber strap for Speedmaster Racing 40mm coaxial 19mm - 98000417

Omega - Speedmaster Racing 40mm coaxial 19mm - 98000417 · $290

A new Omega Speedmaster Racing watch strap with 19mm lugs, suitable for a 40mm coaxial model.

Lug size: 19mm
Strap type: Rubber

Posted at

Apr 30, 2025, 10:49 AM

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Omega Speedmaster Speedy Tuesday - MINT UNWORN $14,500

Omega - Speedmaster Speedy Tuesday ST1 · $14,500

Up for sale is THE Speedy Tuesday ST1, an UNWORN and MINT example of this hard-to-find watch. It includes the watch, box, warranty cards, and accessories.

Condition: Mint unworn
Case Size: 42mm diameter

Posted at

Apr 30, 2025, 9:58 AM

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