Omega Speedmaster Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator

Reference 310.63.42.50.01.001

About this watch

The Omega Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator is a masterpiece of luxury watchmaking, blending history, craftsmanship, and modern technology. Its striking black sunburst dial and Sedna Gold case exude sophistication, while its chronograph function and co-axial escapement ensure precision and reliability. With a water resistance of 50 meters and a power reserve of 50 hours, this watch is built for performance and durability. Whether you're a seasoned collector or a first-time buyer, the Speedmaster Professional Moonwatch is sure to impress with its stunning design, exceptional movement, and practical features.

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MSRP: $30,200

Market Price: $18,352

Key Features

Omega caliber 3861 movement
Sedna Gold case material
Master Chronometer certification by METAS
Chronograph function
Co-axial escapement
Plexi glass crystal
50-meter water resistance

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Sedna Gold / Black / Alligator

Reference

310.63.42.50.01.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

Sedna Gold 42mm

Dial Color

Black

Crystal

Plexi

Water Resistance

Current Listings

Omega Speedmaster Reduced 3510.50

Omega - 3510.50 · $2,499

This Omega Speedmaster Reduced is a 39mm watch with a 7-inch bracelet.

Case size: 39mm

Posted at

May 4, 2026, 9:26 PM

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Omega Speedmaster Reduced 3510.50 - $2500 SHIPPED

Omega - 3510.50 · $2,500

This Omega Speedmaster Reduced features a 39mm case size, automatic 3220 movement, and is very wearable on most wrists.

Condition: Good overall condition with light scratches from regular use
Case size: 39mm
Movement: 3220 automatic
Bracelet type: Uncle's flat link

Posted at

May 4, 2026, 7:06 PM

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Omega Speedmaster Chrono Blue Dial 43mm - 329.30.43.51.03.001 Full Set - Like New Condition - Houston, TX 🔥💰6,297💰🔥 + 🏷️

Omega - 329.30.43.51.03.001 · $6,297

The Omega Speedmaster Chronoscope is a stylish and functional wristwatch designed for unisex adults, featuring a blue dial with spiral pattern and Arabic numerals, housed in a stainless steel case.

Condition: Like new condition, both mechanically and cosmetically.
Case size: 43mm
Movement type: Mechanical manual
Water resistance: 50m

Posted at

May 4, 2026, 6:35 PM

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Omega Speedmaster OEM Rubber Strap & Deployant Clasp

Omega - Speedmaster · $500

Up for sale is an Omega Speedmaster's OEM rubber strap and its clasp, in excellent condition. The deployant clasp was not used due to personal preference.

Material: rubber
Clasp type: deployant

Posted at

May 4, 2026, 3:20 PM

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Omega. Speedmaster. Reverse Panda. Complete Set. $2099 Only

Omega - Speedmaster. Reverse Panda · $2,099

A complete Omega Speedmaster Reverse Panda set, featuring a 39mm case on an OEM bracelet designed for wrists up to 7 inches in circumference.

Condition: 7.75/10 with wear around bezel and some flea bites on crystal
Bracelet size: 39mm diameter can fit ~7inch wrist with 20 links
Box condition: complete

Posted at

May 4, 2026, 2:57 PM

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Omega Speedmaster Date 3513.50 – 39mm Automatic Chronograph – Black Dial – Full Set Serviced Price : 2350$

Omega - 3513.50 · $2,350

This classic Omega Speedmaster Date ref. 3513.50 is a 39mm automatic chronograph with a black dial, part of the less-highly-regarded Speedmaster line. It's perfect for everyday wear with its iconic Speedy DNA.

Condition: Very good used condition, minor scratches on case and strap
Case size: 39mm diameter
Thickness: ~14mm
Lug width: 18mm

Posted at

May 4, 2026, 1:18 PM

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Omega Speedmaster Date 3211.31.00 — 40mm Panda Dial — Cal. 1164 (Fresh Service) — $2,399 Shipped (Tariff Covered)

Omega - 3211.31.00 · $2,399

This Omega Speedmaster Date features a clean silver panda dial with black subdials and red accents, powered by Cal. 1164 with chronograph functions that operate as they should.

Condition: Pre-owned with honest wear
Case size: 40mm diameter
Lug-to-lug length: 46mm
Thickness: 15mm

Posted at

May 4, 2026, 1:13 PM

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Omega Speedmaster Racing - 329.30.44.51.01.001 - Box and Papers - Price Reduced!

Omega - 329.30.44.51.01.001 · $5,695

A pre-owned Omega Speedmaster Racing Chronograph in good condition, featuring a 44.25mm size and coming with its original box, papers, and stainless steel bracelet.

Condition: pre-owned with minor wear
Size: 44.25mm
Bracelet material: stainless steel
Payment methods: Zelle, bank wire, or PayPal F&F

Posted at

May 4, 2026, 1:11 PM

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Omega Speedmaster Broad Arrow Ref. 321.10.44.50.01.001

Omega - 321.10.44.50.01.001 · $3,600

This Omega Speedmaster Broad Arrow features a 44mm stainless steel case, automatic Co-Axial Caliber 3313 movement, and a textured black dial.

Condition: Great condition overall, sapphire crystal clean, textured black dial pristine, stainless steel case shows light wear, automatic movement running good
Case Size: 44mm diameter
Movement: Automatic Co-Axial Caliber 3313
Bracelet Length: fits a 7.5in wrist

Posted at

May 4, 2026, 12:58 PM

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