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 FOIS Anniversary Edition 310.30.40.50.06.001Box and Papers 2024 Good Condition - $6900 + 🏷️

Omega - 310.30.40.50.06.001 · $6,900

This is the anniversary edition for the First Omega in Space Speedmaster, sharing the performance and DNA of an Omega Speedmaster Professional with the same 3861 movement. The watch features chronograph hands contrasting with the watch hands, making it a beautiful conversation piece.

Condition: Good Condition
Box And Papers: yes
Movement: 3861
Bracelet Links: spare links

Posted at

Jan 19, 2026, 11:23 AM

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Omega Speedmaster Aqua Terra 38mm Full Set

Omega - Aqua Terra 38mm · $4,250

Beautiful Omega Aqua Terra 38mm up for sale. It has a protective film on the case and bracelet, adding scratch protection.

Condition: Good pre-owned condition
Bracelet length: 6.75in
Strap material: rubber
Box contents: Inner and Outter Box, cards, tag, OEM bracelet, another set of WatchShell film and tweezers

Posted at

Jan 19, 2026, 10:52 AM

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Omega Speedmaster Automatic Schumacher Ref. 3810.61.41 - $2995

Omega - 3810.61.41 · $2,995

The Omega Speedmaster Automatic Schumacher Ref. 3810.61.41 is a unique limited edition watch.

Schumacher edition: limited edition

Posted at

Jan 19, 2026, 9:40 AM

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[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,100

This Omega Speedmaster Broad Arrow features a white dial and 42mm case, coming in full set with watch, box, manuals, and triple cards.

Condition: Fantastic condition with minor hairlines on bracelet, case, and clasp
Case Diameter: 42mm
Year: 2006

Posted at

Jan 19, 2026, 8:51 AM

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Omega Speedmaster ’57 Gold on Leather Strap 2025 MINT FULL 331.22.42.51.01.001

Omega

The Omega Speedmaster ’57 Gold on Leather Strap is a luxury watch for sale. The details of the watch are still coming, but it appears to be in mint condition.