Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet

Reference 310.30.42.50.01.001

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a masterpiece that combines timeless elegance with modern technology. Founded in 1848, Omega has been a pillar in the world of horology, synonymous with precision and innovation. From its stunning design to its robust functionality, it encapsulates the spirit of adventure and precision that Omega is known for. The Speedmaster line has always been a favorite, and the 3861 model is no exception. With a diameter of 42 mm, the stainless steel case provides both durability and a polished aesthetic. The tachymeter bezel allows for speed calculations over a known distance, making it not just a pretty face but a functional tool. At the heart of the Speedmaster Professional Moonwatch is the Omega Caliber 3861, a hand-wound movement that's a modern upgrade from previous models, incorporating a co-axial escapement and a silicon balance spring. The craftsmanship is evident in the intricate details of the movement, which you can admire through the closed case back.

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MSRP: $7,000

Market Price: $5,141

Key Features

Stainless steel case with black matte finish
42 mm diameter for a refined yet statement-making size
Plexi glass for added durability and shock resistance
Master Chronometer certification by METAS for accuracy and reliability
Hand-wound Omega Caliber 3861 movement with co-axial escapement and silicon balance spring
Chronograph function with small seconds, hours, and minutes
Water resistance of 50 meters for everyday wear

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Bracelet

Reference

310.30.42.50.01.001

Movement

3861

Movement Features

Small Seconds, Hours, Minutes
Chronograph
Chronometer

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Plexi

Water Resistance

Current Listings

Omega Speedmaster 3861 Sapphire Sandwich - Minty - May 2023 Card (under Omega warranty until 2028) - Quick Adjust Bracelet - Full Kit

Omega - 3861 · $6,999

A 2023 Omega Speedmaster Moonwatch 3861 sapphire sandwich, in great condition with a full kit and under warranty until 2028. The watch is running accurately at 0 spd.

Condition: great condition with minor desk dive scratches on the clasp
Warranty expiration date: May 2028
Retail price: $9K

Posted at

Mar 8, 2026, 2:04 PM

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Omega Speedmaster Professional Moonwatch Hesalite 3861 - Full set 2022

Omega - Speedmaster Professional Moonwatch Hesalite 3861

Year: 2022

Posted at

Mar 8, 2026, 1:27 PM

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NEW 2026 Omega reverse panda Speedmaster Professional

Omega - 310.30.42.50.01.004 · $9,500

This brand-new Omega Speedmaster Professional is in excellent condition and comes with all original packaging.

Condition: brand new, absolutely mint
Year of production: 2026
Case size: 42mm diameter

Posted at

Mar 8, 2026, 4:20 AM

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Omega Speedmaster “Silver Snoopy Award” 50th Anniversary Unworn (2024)

Omega - 310.32.42.50.02.001 · $15,400

A 2024 Omega Speedmaster Silver Snoopy Award 50th Anniversary, a highly collectible modern Speedmaster celebrating NASA's Silver Snoopy Award.

Condition: New / Unworn
Case size: 42mm diameter
Movement: Omega Co-Axial Master Chronometer Caliber 3861
Strap material: Blue nylon

Posted at

Mar 7, 2026, 10:20 PM

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OMEGA Speedmaster 38 Co-Axial Chronograph Men's Watch - 324.30.38.50.02.001

OMEGA - 324.30.38.50.02.001 · $2,100

A Omega Seamaster watch, sold as new with original accessories and warranty cards.

Condition: Pre-owned with minor wear marks on bracelet
Purchase location: Goldsmiths
Includes original accessories: yes

Posted at

Mar 7, 2026, 10:18 PM

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Omega Speedmaster 3570.50-$4200

Omega - 3570.50 · $4,200

A Omega Speedmaster in good condition, comes with original bracelet and forstner.

Condition: good
Seller Type: established eBay account
Additional Items: eBay authentication card, original bracelet, forstner

Posted at

Mar 7, 2026, 10:12 PM

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Omega Speedmaster Moonwatch Professional Sapphire 3861 (310.30.42.50.01.002) – 2025 Full Set – $6350

Omega - 310.30.42.50.01.002 · $6,350

This Omega Speedmaster Moonwatch Professional features the Master Chronometer Calibre 3861, a manual wind movement with 50-hour power reserve and anti-magnetic to 15,000 gauss. The watch has a 42mm stainless steel case and black stepped dial.

Condition: Excellent overall condition, light signs of wear on the bracelet and clasp
Movement: Omega Co-Axial Master Chronometer Calibre 3861 (manual wind, 50-hour power reserve, anti-magnetic to 15,000 gauss)
Case size: 42mm
Water resistance: 50m

Posted at

Mar 7, 2026, 9:44 PM

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Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega - 145.022-69 · $5,250

This Omega Speedmaster Moonwatch presents beautifully in full steel, showcasing a strong and sharp case with thick lugs that retain their original shape.

Condition: Serviced with minor polishing in the past
Diameter: 42mm
Year: 1969
Movement: 861 caliber movement

Posted at

Mar 7, 2026, 9:26 PM

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