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 Reverse Panda Speedmaster Full Set $11,900 including CONUS shipping 310.30.42.50.01.004

Omega - Speedmaster 310.30.42.50.01.004 · $11,900

For sale is the new Speedmaster reverse panda, comes with full links and all accessories.

Condition: Unworn, essentially new condition
Case Size: 42mm diameter
Shipping Included: continental US

Posted at

Jan 16, 2026, 8:06 PM

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Omega Speedmaster Professional Moonwatch Sapphire Sandwich – Full Set – Sept 2025 Warranty – Bracelet + Leather

Omega - Sapphire Sandwich · $6,700

This Omega Speedmaster Professional Moonwatch features a 42mm stainless steel case with sapphire crystal front and display caseback, powered by a manual-wind movement.

Condition: Very good condition
Case size: 42mm diameter
Crystal material: Sapphire front & display caseback
Movement type: Manual-wind Co-Axial Master Chronometer

Posted at

Jan 16, 2026, 6:31 PM

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OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$18,000🔥

OMEGA - 311.30.40.30.01.001 · $18,000

The OMEGA Speedmaster Calibre 321 Ref. 311.30.40.30.01.001 is a faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk.

Condition: UNWORN
Movement: Calibre 321
Case material: stainless steel
Diameter: 39.7mm

Posted at

Jan 16, 2026, 6:20 PM

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Omega. Speedmaster Moonwatch. "1971 Apollo XV". $5350 Only

Omega - 311.30.42.30.01.003 · $5,350

This Omega Speedmaster Moonwatch, celebrating the Apollo 15 mission, features a black dial with blue and red accents and comes with an OEM bracelet.

Condition: Good condition (7.5/10)
Case size: 42mm
Bracelet length range: 7.5inch hand
Dial color: Black with Blue and Red Accents

Posted at

Jan 16, 2026, 1:21 PM

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2024 Omega Speedmaster "Ed White" 39.7mm 311.30.40.30.01.001 Black Dial - $16,250

Omega - 311.30.40.30.01.001 · $16,250

2024 Omega Speedmaster "Ed White" in 39.7mm case size with a black dial.

Case diameter: 39.7mm

Posted at

Jan 16, 2026, 10:23 AM

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2024 Omega Speedmaster "Ed White" 39.7mm 311.30.40.30.01.001 Black Dial - $16,250

Omega - 311.30.40.30.01.001 · $16,250

2024 Omega Speedmaster 'Ed White' in a 39.7mm case with a black dial.

Case size: 39.7mm diameter
Dial color: black

Posted at

Jan 16, 2026, 10:20 AM

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Omega Speedmaster Calibre 321 Ed White 311.30.40.30.01.001 $13,999

Omega - 311.30.40.30.01.001 · $13,999

This Omega Speedmaster Calibre 321 pays tribute to the original speedmaster worn during America's first spacewalk in 1965, with a 39.7mm stainless steel case powered by the legendary hand-wound Calibre 321.

Condition: Preowned - Excellent
Box Papers: Yes, dated July 2023
Case Size: 39.7mm diameter
Movement Type: hand-wound

Posted at

Jan 16, 2026, 9:50 AM

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2007 Omega Speedmaster Date Chronograph 3210.50 - $2,999

Omega - 3210.50 · $2,999

A 2007 Omega Speedmaster Date Chronograph, in good overall condition, with a stainless steel bracelet and black dial.

Condition: Good overall condition, light wear on case and bracelet
Serial number: 81.6M (circa 2007)
Movement: Automatic chronograph
Dial color: Black

Posted at

Jan 16, 2026, 2:09 AM

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📣🚨OMEGA Speedmaster “FOIS” 311.32.40.30.01.001 EXCELLENT CONDITION! $4950 shipped 🚨📣

OMEGA - 311.32.40.30.01.001 · $4,950

This is a preowned Omega Speedmaster 'First Omega in Space' in excellent condition, featuring a manual wind movement and complete set, including box and papers.

Condition: Excellent / like new
Movement: Caliber 1861
Case Size: 39.7mm diameter
Box Condition: shows wear

Posted at

Jan 15, 2026, 10:36 PM

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