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

2026 Omega Speedmaster Moonwatch Professional 310.32.42.50.04.002 – Brand New / Partially Stickered

Omega - 310.32.42.50.04.002 · $8,000

A 2026 Omega Speedmaster Moonwatch Professional featuring a white dial, classic case, and black bezel, powered by the Master Chronometer Caliber 3861 manual-wind chronograph movement.

Condition: Brand new / partially stickered with small nick near lower right lug
Case size: 42mm
Movement: Omega Caliber 3861, Master Chronometer
Crystal: Sapphire

Posted at

Mar 13, 2026, 10:42 PM

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OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000

The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 is a 44.25mm masterpiece crafted from black ceramic, commemorating the 50th anniversary of the Apollo 8 mission.

Condition: UNWORN
Case material: black ceramic
Diameter: 44.25mm
Movement: Calibre 1869

Posted at

Mar 13, 2026, 8:27 PM

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OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,000🔥

OMEGA - 311.30.40.30.01.001 · $16,000

A faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk, featuring a stainless steel timepiece with a black ceramic bezel and column-wheel chronograph movement.

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

Posted at

Mar 13, 2026, 8:17 PM

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Omega Speedmaster Professional “Reverse Panda” 42MM - Ref 310.30.42.50.01.004 (NEW / UNWORN 2026 COMPLETE SET)

Omega - 310.30.42.50.01.004 · $10,800

For sale is a 42MM Omega Speedmaster Professional ‘Reverse Panda’, in true new condition, with all original packaging and documentation.

Condition: new, unworn, unsized
Warranty date: 03/12/2026
Included items: outer sleeve, outer box, inner box, cards, manuals, AD shipping coffin, serialized hangtag, UPC sticker, microfiber, travel case

Posted at

Mar 13, 2026, 3:59 PM

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Omega Speedmaster Racing 40mm Blue Dial – Full Set – $2,950

Omega - 326.30.40.50.03.001 · $2,950

Up for sale is my Omega Speedmaster Racing with the blue dial and black textured sub-dials, featuring a 40mm automatic chronograph powered by the Omega Co-Axial Caliber 3330.

Condition: Very good pre-owned condition
Case size: 40mm diameter
Strap: Aftermarket strap and original Omega stainless steel bracelet included

Posted at

Mar 13, 2026, 3:44 PM

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Omega Speedmaster Racing 329.30.44.51.04.001 COMPLETE SET 2024

Omega - 329.30.44.51.04.001 · $6,250

This Omega Speedmaster Racing features a white dial and comes in its complete set, including double boxed packaging and all relevant documentation.

Condition: Excellent
Payment Methods Accepted: cryptocurrency, local meetups, other methods
Trades Allowed: yes, only for brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
Location: southwest FL

Posted at

Mar 13, 2026, 2:18 PM

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Omega Speedmaster Reduced 3510.50 Excellent Condition + Serialized Hand Tag

Omega - 3510.50 · $2,650

This Omega Speedmaster Reduced is in excellent condition with hardly any signs of wear for its age, and it comes with a serialized hand tag.

Condition: Excellent
Serial number included: yes, with serialized hand tag
Payment methods accepted: cash, crypto (with fee), other payment methods
Trade options: Tudor, Cartier, Rolex, Omega, Breitling, AP

Posted at

Mar 13, 2026, 2:13 PM

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Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050

This Omega Speedmaster Professional Moonwatch is a well-preserved and reliable example of the Speedmaster Moonwatch from 1978. It features an original black tritium dial with even yellow patina across all hour markers, adding warmth and character to the watch.

Condition: Very good overall shape, all-original condition
Case diameter: 42mm
Year of production: 1978
Bracelet size: 7.6–7.7 inches (19.7 cm)

Posted at

Mar 13, 2026, 1:02 PM

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Omega Speedmaster Reduced 3510.82 " Blue " JDM LE - $4199 - DHL

Omega - 3510.82 · $499

This Omega Speedmaster Reduced Limited Edition is a beautiful example of the Japanese market's exclusive 'Blue' dial, produced in 2003 and limited to 1,500 pieces.

Condition: Good (9/10)
Limited edition size: 1,500 pieces
Case size: 39mm diameter
Condition rating: 9/10

Posted at

Mar 13, 2026, 11:43 AM

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