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

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Omega - 323.30.40.40.04.001 · $3,499

The Omega Speedmaster Day Date Panda is a 40mm watch with a distinctive design.

Bracelet length: 7.5 inches

Posted at

Dec 4, 2025, 2:23 PM

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Omega - 3518.50 · $3,550

The Omega Speedmaster Racing Michael Schumacher Limited Edition, a highly collectible model produced as part of Omega’s tribute to Formula 1 legend Michael Schumacher. This limited edition watch is one of 6000 produced and comes in excellent condition.

Condition: Excellent overall condition with light signs of wear
Limited edition quantity: 6000
Case condition: Excellent overall condition with only light signs of wear consistent with careful use
Dial condition: Perfect condition — no blemishes, discoloration, or lume degradation

Posted at

Dec 4, 2025, 11:55 AM

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🔥OMEGA SPEEDMASTER MOONWATCH PROFESSIONAL SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 11/2025 BRAND NEW🔥

OMEGA - 310.30.42.50.01.002 · $7,300

This OMEGA Speedmaster Moonwatch Professional Sapphire Sandwich is a brand new, unworn watch with a black dial and stainless steel case.

Condition: BRAND NEW/UNWORN
Case size: 42mm diameter
Material: Stainless Steel

Posted at

Dec 3, 2025, 9:48 PM

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OEM Authentic Omega Speedmaster 20mm Bracelet - $575 shipped CONUS

Omega - 41mm Speedmaster, 20mm lug width, 1620/887 bracelet code · $575

A 41mm Omega Speedmaster in good condition, featuring a 20mm bracelet that should fit most Speedmasters with the same lug width.

Condition: Good condition with some desk dive rash
Bracelet code: 1620/887
Lug width: 20mm

Posted at

Dec 3, 2025, 7:56 PM

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- Omega SpeedMaster Professional 3570.50 Matte Black Dial - $4,450

Omega - 3570.50 · $4,450

The Omega Speedmaster Professional features a 42mm stainless steel case with a matte black dial and a black bezel insert, powered by an unknown movement.

Condition: excellent
Case size: 42mm
Bracelet length: up to 7 inches / 17.8 cm
Bracelet material: stainless steel

Posted at

Dec 3, 2025, 6:01 PM

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FINAL Price Reduction Omega Speedmaster Professional White Dial Full Set on Speedmaster '57 Flat Link Bracelet

Omega - 310.30.42.50.04.001 · $7,500

This Omega Speedmaster Professional features a white dial and is paired with a Speedmaster '57 flat link bracelet, which honors the original 1957 look.

Condition: Fairly new, beloved
Bracelet type: Speedmaster '57 flat link
Bracelet installation location: Omega Boutique at South Coast Plaza in Costa Mesa, CA
Bracelet date: 8/2025

Posted at

Dec 3, 2025, 5:16 PM

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