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

Brand New Omega Speedmaster Moonwatch "Sapphire Sandwich" [ Ref. 310.30.42.50.01.002 ]

Omega - 310.30.42.50.01.002 · $7,300

This listing is for a brand new Omega Speedmaster Moonwatch Professional in the 'Sapphire Sandwich' style. It comes as a full set with various accessories.

Condition: Brand new, unworn
Case size: 42mm diameter

Posted at

Apr 29, 2026, 3:46 PM

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Omega Speedmaster '57 - current gen - warranty till Apr 2027 - $5.5K

Omega - 332.10.41.51.01.001 · $5,499

A current generation Omega Speedmaster '57 with a April 29, 2022 date, featuring a beautiful wooden box and manual.

Condition: Very good, with scratches and hairlines
Warranty Expiration: April 2027
Shipping Options: insured shipping available for additional $100
Bracelet Size: 17cm

Posted at

Apr 29, 2026, 3:40 PM

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Omega OEM deployant 16mm buckle width length (fits 20mm speedmaster straps)

Omega - no reference found · $260

A stainless steel Omega OEM deployant buckle for watches with a 20mm strap width.

Condition: no condition found
Buckle width: 16mm
Compatible with straps: 20mm speedmaster straps
Retail price: $310

Posted at

Apr 29, 2026, 2:42 PM

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Omega Speedmaster Date 3513.50

Omega - 3513.50

Model name: Speedmaster Date

Posted at

Apr 29, 2026, 2:36 PM

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2026 NEW Omega Speedmaster Reverse Panda 310.30.42.50.01.004 Unworn

Omega - 310.30.42.50.01.004 · $9,900

This new Omega Speedmaster Reverse Panda is an unworn timepiece that comes with its full set, including the box and paperwork.

Condition: Like New
Year Of Manufacture: 2026
Material: Stainless Steel
Bracelet Material: Stainless Steel

Posted at

Apr 29, 2026, 2:30 PM

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Omega Speedmaster Reduced - 3510.50

Omega - 3510.50 · $2,495

A Omega Speedmaster Reduced in good pre-owned condition, featuring a 39mm case size and chronograph function that will require service.

Condition: good pre-owned condition
Size: 39mm diameter

Posted at

Apr 29, 2026, 1:01 PM

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Omega Speedmaster 3519.50.00 “Schumacher World Champion 2001” LE — Racing Dial — $2,599 Shipped (Tariff Covered)

Omega - 3519.50.00 · $2,599

This Omega Speedmaster ref. 3519.50.00 'Schumacher World Champion 2001' Limited Edition features a distinctive racing dial and is powered by an automatic chronograph movement.

Condition: Honest condition with light signs of use
Case size: 39mm
Lug-to-lug: 44mm
Thickness: 14mm

Posted at

Apr 29, 2026, 12:39 PM

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