Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

Reference 310.30.42.50.01.003

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

About this watch

The Omega Speedmaster Professional Moonwatch 3861 is a piece of history wrapped around your wrist, with its rich lineage and modern upgrades capturing the hearts of watch enthusiasts and collectors alike. This manual-winding chronograph movement features a co-axial escapement and silicon balance spring, making it resistant to magnetic fields up to 15,000 gauss. The plexi glass provides a warm, vintage feel that many collectors adore, while the stainless steel case measures 42mm in diameter and has a water resistance of 50 meters. This timepiece is perfect for everyday wear, suitable for both formal and casual occasions. With its stunning design, robust movement, and versatility, it's a celebration of heritage, precision, and style.

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Key Features

Omega Caliber 3861 Movement
Plexi Glass with Vintage Feel
42mm Stainless Steel Case
50m Water Resistance
Manual-Winding Chronograph Function
Co-Axial Escapement and Silicon Balance Spring

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch 3861 Stainless Steel / Black / Plexi / Kanjar Oman

Reference

310.30.42.50.01.003

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 Professional "Sapphire Sandwich" Ref. 3573.50 - $4,750

Omega - 3573.50 · $4,750

This Omega Speedmaster Professional features a stainless steel case, 42mm in diameter, with sapphire crystals front and back, powered by an Omega Calibre 1863 movement. It is a manual wind chronograph from approximately 2005.

Condition: Good condition with slight wear marks and one scratch
Case size: 42mm
Crystal material: Sapphire
Movement type: Manual wind chronograph

Posted at

Apr 29, 2026, 12:06 AM

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2026 Omega Speedmaster “Reverse Panda” 310.30.42.50.01.004 $9599 + FREE SHIPPING

Omega - 310.30.42.50.01.004 · $9,599

2026 Omega Speedmaster “Reverse Panda” with a 42mm steel case, black dial with white sundials, and a 3861 movement providing 50 hours of power reserve.

Condition: Preowned, 9.9/10 Cosmetic Condition
Case size: 42mm
Movement: 3861
Power reserve: 50 Hours

Posted at

Apr 28, 2026, 11:12 PM

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OMEGA Speedmaster Professional MOONWATCH Sapphire Sandwich

OMEGA - 311.30.42.30.01.006 · $5,799

This is the iconic OMEGA Speedmaster Professional Moonwatch Sapphire Sandwich, featuring a timeless design and highly sought-after sapphire crystal configuration.

Condition: mint condition
Case material: steel
Band material: steel
Crystal material: sapphire

Posted at

Apr 28, 2026, 10:28 PM

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2022 OMEGA SPEEDMASTER PROFESSIONAL 310.30.42.50.01.002 $6050 + FREE SHIPPING

OMEGA - 310.30.42.50.01.002 · $6,050

2022 OMEGA SPEEDMASTER PROFESSIONAL with manual wind 3861 movement and 50-hour power reserve.

Condition: Excellent pre owned condition
Case Size: 42mm diameter
Movement: Manual Wind 3861
Power Reserve: 50 Hours

Posted at

Apr 28, 2026, 10:20 PM

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Omega Speedmaster Moonwatch “Reverse Panda” Ref: 310.30.42.50.01.004 (2026) Like New Complete $10,250

Omega - 310.30.42.50.01.004 · $10,250

A modern Omega Speedmaster Moonwatch with a unique 'Reverse Panda' dial and the upgraded 3861 METAS movement in excellent condition.

Condition: Excellent, like new
Case size: 42mm
Movement: Calibre 3861, manual-wind, Co-Axial Master Chronometer (METAS)
Power reserve: 50hr

Posted at

Apr 28, 2026, 9:19 PM

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Omega Speedmaster Date 3513.50 39mm - $1,790

Omega - 3513.50 · $1,790

This is an Omega Speedmaster Date 3513.50, a 39mm automatic watch with an Omega Calibre 1152 movement.

Condition: Very good condition for its age
Case size: 39mm diameter
Movement: automatic Calibre 1152
Bracelet length: up to 7-7.25 inch wrists depending on wrist shape

Posted at

Apr 28, 2026, 9:01 PM

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Omega Speedmaster Moonphase 🍫

Omega - 304.23.44.52.13.001 · $8,500

This Omega Speedmaster Moonphase is a two-tone model featuring steel and Sedna gold, housed in a 44mm case.

Condition: Very good condition with some normal wear
Movement: Cal 9904
Size: 44mm diameter

Posted at

Apr 28, 2026, 9:00 PM

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Omega. Speedmaster. Reverse Panda. Complete Set. $2099 Only

Omega - Speedmaster · $2,099

This Omega Speedmaster is a Reverse Panda model, complete with its original set including warranty, tag, inner and outer box, and two booklets.

Condition: 7.75/10 with wear around bezel
Bracelet size: 20 links
Warranty status: Complete
Box condition: Inner and Outer Box, 2 booklets

Posted at

Apr 28, 2026, 8:36 PM

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(Omega) Speedmaster Date 3511.50 Full Set $2,099

Omega - 3511.50 · $2,099

For sale is an Omega Speedmaster Date, reference 3511.50, a reduced variant made for the Japanese market. This automatic watch features a 39mm case and 18mm lugs.

Condition: Excellent external condition, running well internally
Case size: 39mm diameter
Lug-to-lug length: 45mm
Thickness: 13.8mm

Posted at

Apr 28, 2026, 8:18 PM

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