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 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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Omega Speedmaster white dial on bracelet with oem rubber included

Omega - Speedmaster · $7,500

A white Omega Speedmaster on bracelet, sold in good condition with some minor cosmetic issues.

Condition: Good condition with some swirls and light scratches (8.5/10)
Box And Papers: Full kit
Purchase Receipt: Original

Posted at

Jan 13, 2026, 2:42 PM

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Omega Speedmaster. Sapphire Sandwich. Automatic. Box, Papers.

Omega - 311.30.44.50.01.002 · $4,950

Omega Speedmaster, also known as the Sapphire Sandwich, is a high-end automatic watch that features strong lume.

Water Resistance: 30m
Box And Papers: true

Posted at

Jan 13, 2026, 1:38 PM

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Omega Speedmaster Sapphire

Omega - Speedmaster Moonwatch · $5,900

A Omega Speedmaster Moonwatch listed for sale, stated to run great with excellent case condition.

Condition: Excellent
Case condition: Excellent

Posted at

Jan 13, 2026, 8:40 AM

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Omega Speedmaster Two Tone Reduced

Omega - 3714.20.80 · $2,500

A rare two-tone Omega Speedmaster reduced, featuring a white dial and gold subdials, housed in an 18k gold bezel.

Condition: Good, some wear on the case and bezel
Movement: Cal 1140
Size: 39mm diameter

Posted at

Jan 12, 2026, 8:37 PM

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Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

Omega - 326.30.40.50.02.001 · $5,895

The Omega Speedmaster Racing features a striking silver white dial with bold chronograph hands and counters, paired with a stainless steel case and bracelet for a timeless design with modern presence.

Condition: Excellent
Case material: stainless steel
Bracelet type: bracelet
Movement type: chronograph movement

Posted at

Jan 12, 2026, 6:52 PM

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Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 "Sapphire Sandwich."

Omega - 310.30.42.50.01.002 · $5,450

The Omega Speedmaster Moonwatch Professional, also known as the 'Sapphire Sandwich', is a modern iteration of the timepiece that went to the moon. It features a sapphire crystal front and caseback, redesigned bracelet, and Co-Axial Master Chronometer movement.

Condition: Excellent
Case material: Sapphire crystal front and caseback
Bracelet condition: Excellent
Movement: Co-Axial Master Chronometer

Posted at

Jan 12, 2026, 4:55 PM

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2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

Omega - 310.30.42.50.01.002 · $6,195

This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

Condition: Minty fresh
Case size: 42mm
Year: 2022
Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet

Posted at

Apr 7, 2025, 2:59 PM

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Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint

Omega - 324.30.38.50.03.002 · $3,695

This Omega Speedmaster Chronograph features a 38mm stainless steel case, blue dial, and automatic movement.

Condition: Pre-Owned - Mint
Case size: 38mm diameter
Bracelet type: Stainless Steel
Dial color: Blue

Posted at

Apr 5, 2025, 6:13 PM

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