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

2022 Omega Speedmaster Moonwatch Professional – 310.30.42.50.01.001 - $5899 Shipped

Omega - 310.30.42.50.01.001 · $5,899

For sale is a 2022 Omega Speedmaster Moonwatch Professional in excellent condition, showing light signs of normal wear and running properly.

Condition: Excellent overall condition with light signs of normal wear only
Case size: 42mm
Movement type: Manual wind chronograph
Crystal material: Hesalite

Posted at

Mar 15, 2026, 2:41 AM

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Omega Speedmaster Reduced 39mm Ref. 175.0032 Cal 1140 TRITIUM PATINA

Omega - 175.0032 · $2,550

This Omega Speedmaster Reduced features a beautiful tritium patina on its dial, giving it an authentic vintage character.

Condition: Honest signs of use consistent with its age, scratches on case and bracelet
Movement: Omega Caliber 1140 Automatic (46 jewels)
Case Size: 39mm
Caseback: Solid Omega press on caseback

Posted at

Mar 15, 2026, 1:38 AM

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Omega Speedmaster Professional Moonwatch ref. 145.022 circa 1978

Omega - 145.022 · $4,400

A circa 1978 Omega Speedmaster Professional Moonwatch ref. 145.022, featuring a Lemania based caliber 861 movement, in a classic 42mm case.

Condition: Used, with wear and signs of polish
Movement: Lemania based caliber 861
Case size: 42mm diameter
Lug width: 20mm

Posted at

Mar 14, 2026, 8:50 PM

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Omega Speedmaster Professional Moonwatch White Dial Complete Set w/ Box, Papers and Warranty!

Omega - Speedmaster Professional Moonwatch · $6,500

Box: yes, with box and papers
Warranty: still under warranty
Dial: white dial

Posted at

Mar 14, 2026, 5:18 PM

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Omega Speedmaster Moonwatch Sapphire 3861 - full kit bracelet plus leather

Omega - 3861 · $6,490

A Omega Speedmaster Moonwatch Sapphire Sandwich sold as a full kit with both leather and bracelet included.

Condition: Great condition, with some marks on the back of the lugs from strap changes
Warranty: Joma shop warranty until Jan 2028
Strap: Omega leather strap
Bracelet Links: All links included

Posted at

Mar 14, 2026, 4:34 PM

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Omega Speedmaster Moonwatch Professional - 311.30.42.30.01.006 - 42mm - Big Box - Full Set

Omega - 311.30.42.30.01.006 · $5,150

Up for sale is an Omega Speedmaster Moonwatch Professional - 42mm - Big Box - Full Set Watch functions perfectly mechanically, without issue.

Condition: Fantastic condition with minor hairlines on bracelet, clasp, and case
Case size: 42mm
Bracelet condition: minor hairlines

Posted at

Mar 14, 2026, 12:02 PM

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[US] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega - 311.93.44.51.99.001 · $7,575

A Omega Speedmaster Grey Side Of The Moon, featuring a grey dial and 44mm size.

Condition: great condition, small chip on edge of case back
Case Size: 44mm diameter

Posted at

Mar 14, 2026, 11:34 AM

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Omega Speedmaster Professional 3861 Link - $50

Omega - Speedmaster Professional 3861 Link · $50

Sealed and unopened OEM genuine Omega Speedmaster 3861 Professional replacement link, pin, and collar set received directly from an Omega Boutique.

Origin: directly from Omega Boutique
Shipping: free to CONUS with PayPal Friends+Family

Posted at

Mar 14, 2026, 9:21 AM

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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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