Omega Speedmaster Speedmaster Professional Moonwatch Plexi / See-Through / Leather

Reference 3872.50.01

Omega Speedmaster Professional Moonwatch Plexi / See-Through / Leather

About this watch

The Omega Speedmaster Professional Moonwatch Plexi is a stunning celebration of design, functionality, and history. Its sleek stainless-steel case, measuring 42mm in diameter, strikes a perfect balance between elegance and masculinity. The black dial with stick and dot indexes is both stylish and functional, while the tachymeter bezel adds a sporty touch. The open case back showcases the intricate workings of the Omega caliber 1863 movement, allowing watch enthusiasts to appreciate the craftsmanship that goes into each timepiece. This hand-wound chronograph features 18 jewels and boasts a power reserve of 48 hours, delivering accurate timekeeping with its frequency of 21,600 vibrations per hour. The chronograph functionality is where this watch truly shines, allowing you to measure elapsed time with precision. With a water resistance of 50 meters, the Omega Speedmaster Professional Moonwatch can handle splashes and brief immersions. Its rich history adds a layer of nostalgia and significance to the watch, making it not just a fashion statement but also a smart investment. Whether you're a seasoned collector or a first-time buyer, this watch offers something special for everyone.

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Key Features

Omega caliber 1863 movement
Hand-wound chronograph with 18 jewels
48-hour power reserve
Tachymeter bezel
Plexiglass crystal
Open case back
50-meter water resistance

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch Plexi / See-Through / Leather

Reference

3872.50.01

Movement

1863

Movement Features

Hours, Minutes, Small Seconds
Chronograph

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Plexi

Water Resistance

Current Listings

Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $10,995

This Omega Speedmaster 'Ed White' features a stunning brown tropical dial and is one of the most collectible variants among Speedmaster enthusiasts, having been worn by astronauts during NASA's Gemini missions. The movement has been professionally serviced in July 2025, ensuring accurate timekeeping with chronograph functions performing as intended.

Condition: Very good condition
Size: 39mm diameter
Year: 1965
Movement serviced: July 2023

Posted at

Jan 15, 2026, 5:27 PM

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Omega Speedmaster Reduced - 39mm Two Tone - Ref 175.0033 - Price Reduced!

Omega - 175.0033 · $2,795

This Omega Speedmaster Reduced features a white dial and is available for sale as watch only on a high-quality leather strap.

Condition: great vintage condition, light hairlines on bezel and case
Case size: 39mm
Strap material: leather AM strap from Casanova

Posted at

Jan 15, 2026, 12:33 PM

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2021 Omega Speedmaster Professional Moonwatch Sapphire Sandwich $5,999

Omega - 310.30.42.50.01.002 · $5,999

The Omega Speedmaster Moonwatch Professional sapphire sandwich version features a robust and elegant 42mm stainless steel case, updated Caliber 3861 movement, and superior magnetic resistance.

Condition: Excellent time keeping with no significant gain or loss
Case size: 42mm diameter
Case thickness: 13.2mm
Lug width: 20mm

Posted at

Jan 15, 2026, 12:27 PM

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Omega Speedmaster Professional Full Kit with Extras (reposted and reduced)

Omega - 3861 · $5,600

an Omega Speedmaster Professional Moonwatch with Cal. 3861 movement and Hesalite crystal, purchased from an Authorized Dealer.

Condition: Daily wear, shows normal wear/use
Movement: Cal. 3861 (Master Chronometer)
Bracelet type: Current bracelet with tool-less sliding clasp adjustment

Posted at

Jan 15, 2026, 10:55 AM

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Omega Speedmaster Reduced 3523.80.00 – Blue Dial – Full Set + Serialized Tag – Mint – $3,500

Omega - 3523.80.00 · $3,500

This Omega Speedmaster Reduced features a unique blue dial, classic proportions and wearability, making it an excellent alternative for collectors who want something rarer than the standard black-dial Reduced.

Condition: Mint
Movement: Automatic chronograph
Case size: 39mm diameter
Dial color: Blue

Posted at

Jan 15, 2026, 10:34 AM

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2023 Omega Speedmaster Calibre 321 “Ed White” 311.30.40.30.01.001 — Excellent Condition, Box & Papers

Omega - 311.30.40.30.01.001 · $75,000

This is a 2023 Omega Speedmaster Calibre 321 'Ed White' edition. It features a silver dial with a distinctive design.

Condition: Excellent Condition
Year: 2023
Movement: Calibre 321

Posted at

Jan 15, 2026, 8:21 AM

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2024 Omega Speedmaster “First Omega in Space” 310.30.40.50.06.001 – Full Set – $6,450 Shipped

Omega - 310.30.40.50.06.001 · $6,450

A modern reissue of the Speedmaster worn by Wally Schirra during the Sigma 7 mission, featuring a slim 39.7mm case with Master Chronometer technology.

Condition: Excellent
Case Size: 39.7mm
Water Resistance: 50m
Movement: Manual-wind chronograph (Omega Caliber 3861, Master Chronometer)

Posted at

Jan 14, 2026, 3:28 PM

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