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 First Omega In Space FOIS 40mm 310.30.40.50.06.001 | 8/2025 Full Set

Omega - 310.30.40.50.06.001 · $7,250

This is a 40mm Omega Speedmaster First Omega In Space (FOIS) with a Master Chronometer certification.

Condition: Pre-Owned, Great Condition
Bezel condition: Clean
Crystal condition: Clean
Bracelet length: 23 Links

Posted at

Jan 13, 2026, 10:27 PM

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Omega Speedmaster 38 324.30.38.50.01.001 | 2024 Full Set w/ Extra OEM Strap

Omega - 324.30.38.50.01.001 · $3,999

A 2024 Omega Speedmaster 38 with a slight scratching on the anti-reflective coating, available for sale in excellent condition with extra OEM strap and various other accessories.

Condition: Pre-Owned | Slight scratching on AR Coating
Water resistance: 350 AMP

Posted at

Jan 13, 2026, 10:23 PM

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2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set + Extra Uncle Bracelet – $6,950 Shipped

Omega - 310.30.40.50.06.001 · $6,950

A modern reissue of the Speedmaster worn by Wally Schirra during the Sigma 7 mission, featuring a slimmer 39.7mm case and vintage-inspired aesthetic.

Condition: Excellent
Case size: 39.7mm
Movement: Omega Caliber 3861, Manual-wind chronograph
Crystal: Sapphire

Posted at

Jan 13, 2026, 7:58 PM

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20mm Omega Integrated Speedmaster Black Rubber Strap & Omega Clasp - (Backordered) 2. 20mm Omega SMP 300 Black Rubber Strap & Omega OEM Clasp

Omega - 032Z017245, 032CVZ015752 · $575

The seller is offering two Omega watch straps for sale: a black rubber strap with integrated Speedmaster design and an SMP 300 Black Rubber Strap. Both straps are OEM and come with their respective clasps.

Strap Type1: Integrated Speedmaster Rubber Strap
Strap Type2: SMP 300 Black Rubber Strap
Clasp Type1: Omega OEM Stainless Steel Deployant Clasp

Posted at

Jan 13, 2026, 5:42 PM

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Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫

Omega - 145.022-69 · $14,995

The Omega Speedmaster Moonwatch 145.022-69 features a super tropical brown dial with heavy yellow patina, a deep blue bezel, and tritium that glows green under UV light.

Condition: Very rare and fully original, beautiful condition
Case size: 42mm
Year of production: 1969
Movement serviced: November 2025

Posted at

Jan 13, 2026, 5:18 PM

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