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 date / Silver Dial / 40mm / Full Set

Omega - 3211.30.00

This Omega Speedmaster date features a silver dial and a 40mm case, making it suitable for smaller wrists.

Condition: Excellent
Diameter: 40mm
Includes: Double boxed, all three cards filled out, card holder, manual booklet

Posted at

May 5, 2026, 3:00 PM

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Omega Speedmaster Racing Blue 326.30.40.50.03.001 w Pictograms

Omega - 326.30.40.50.03.001 · $2,999

This Omega Speedmaster Racing watch features a clean crystal and bezel insert, along with a healthy movement.

Condition: Preowned, with minor scratches/dings

Posted at

May 5, 2026, 1:00 PM

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Omega Speedmaster Date 3210.50 Black Dial $1,999

Omega - 3210.50 · $1,999

The Omega Speedmaster Date is a 40mm stainless steel automatic chronograph with a black dial and tachymeter bezel, featuring a sporty classic look.

Condition: good pre-owned
Case size: 40mm diameter
Lug-to-lug: 45mm length
Lug width: 19mm width

Posted at

May 5, 2026, 12:04 PM

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Omega Speedmaster Silver Snoopy 50th Anniversary 310.32.42.50.02.001 ( new / 2025 / box and papers )

Omega - 310.32.42.50.02.001 · $15,750

This Omega Speedmaster Moonwatch is a brand new Silver Snoopy Award 50th Anniversary model, featuring a 42mm stainless steel case and the Omega Master Chronometer Movement.

Condition: Brand new
Case size: 42mm
Movement type: Master Chronometer

Posted at

May 5, 2026, 11:49 AM

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Omega Speedmaster Dark Side of the Moon 44.25mm 310.92.44.51.01.002 ( new / 2025 / box and papers )

Omega - 310.92.44.51.01.002 · $13,550

The Omega Speedmaster Dark Side of the Moon is a high-end watch with a black ceramic case and Co-Axial Calibre 9900 movement.

Condition: Brand new
Case material: Black ceramic
Diameter: 44.25mm

Posted at

May 5, 2026, 11:43 AM

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Omega Speedmaster Apollo 17

Omega - Speedmaster Apollo 17 · $7,999

This rare Omega Speedmaster Apollo 17 is one of only 1972 pieces ever made, featuring a good condition and no major marks on the bracelet or watch.

Condition: Good
Production run size: 1972 pieces
Bracelet condition: No major marks
Wrist size requirement: 7.3 inches

Posted at

May 5, 2026, 11:40 AM

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Omega Speedmaster Snoopy New 5/2026, $15.5k

Omega - 310.32.42.50.02.001 · $15,500

This is a listing for an Omega Speedmaster Snoopy, a new watch with a reference number of 310.32.42.50.02.001. The watch comes in its original box and has a dated warranty.

Condition: New
Shipping Cost: $100 Shipping for USA
Payment Methods: Wire or Credit Card (+4.9% & 4 days clearance)
Warranty Duration: 2 years (2026-2028)

Posted at

May 5, 2026, 9:20 AM

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[US] Omega Speedmaster Moonwatch Professional Moonshine Gold Black Dial 42mm 310.60.42.50.01.002 - Complete Set 2026 - $35,000

Omega - 310.60.42.50.01.002 · $35,000

Year: 2026

Posted at

May 5, 2026, 9:03 AM

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[US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set

Omega - 310.30.40.50.06.001 · $7,500

This Omega Speedmaster First Omega in Space is a mechanical watch that comes fully linked with its original accessories.

Condition: Fantastic condition with few, if any hairlines on case, clasp, and bracelet.
Case condition: Few hairlines
Comes with: Full set of accessories

Posted at

May 5, 2026, 7:09 AM

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