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

Reference 3872.50.01

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
50

Current Listings

[WTS] Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 | Ceramic |FULL SET

Additional Details: Omega SpeedMaster Dark Side of the Moon with a full-ceramic case and buckle.

  • Condition: Mint, like-new
  • Case material: full ceramic
  • Year: 2019
Posted at
Jan 12, 2026, 2:45 PM
Active
[WTS] 20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

20mm Omega Speedmaster Bracelet 1499 / 842 – Production (1996–1998)

Omega - 1499 / 842 · $495
A high-quality Omega factory bracelet option with excellent build and taper, known among Speedmaster collectors.

  • Production Period: 1996-1998
  • Wrist Size Fit: 7 3/4 inches
Posted at
Jan 12, 2026, 1:09 PM
Active
[WTS] PRICE DROP: Omega Speedmaster White Dial Full Set

PRICE DROP: Omega Speedmaster White Dial Full Set

A Omega Speedmaster White Dial full set, including a flat link bracelet honoring the original Speedmaster from 1957.

  • Bracelet style: flat link, honoring original 1957 Speedmaster
  • Clasp condition: some snail trails
Posted at
Jan 12, 2026, 12:18 PM
Active
[WTS] Omega Speedmaster Moonphase 304.33.44.52.03 Blue Dial 44.25mm Full Set

Omega Speedmaster Moonphase 304.33.44.52.03 Blue Dial 44.25mm Full Set

This listing is for an Omega Speedmaster Moonphase with a blue dial and 44.25mm case size.

  • Diameter: 44.25mm
Posted at
Jan 12, 2026, 10:17 AM
Active
[WTS][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,125
An Omega Speedmaster Broad Arrow with a white dial and 42mm case, available in full set with box and papers.

  • Condition: Fantastic condition with minor hairlines on bracelet, case, and clasp
  • Case Size: 42mm diameter
  • Year: 2006
Posted at
Jan 12, 2026, 8:06 AM
Active
[WTS] Omega Speedmaster Pilot  | 2025

Omega Speedmaster Pilot | 2025

This Omega Speedmaster Pilot is the recently released flight qualified version of the Speedmaster, featuring an automatic caliber 9900 movement and sapphire crystal.

  • Condition: Excellent
  • Case size: 40.85mm
  • Case material: Steel
  • Bracelet material: Steel
Posted at
Jan 11, 2026, 8:01 PM
Active
[WTS] 2023 Omega Speedmaster Moonphase Sedna (Rose) Gold / Brown Dial

2023 Omega Speedmaster Moonphase Sedna (Rose) Gold / Brown Dial

This Omega Speedmaster Moonphase features a sophisticated evolution of the legendary Speedmaster with classical complications and modern Omega innovation, crafted in 18k Sedna Gold with a beautifully finished brown sun-brushed dial.

  • Condition: excellent
  • Case Size: 44.25mm diameter
  • Case Material: 18k Sedna Gold
  • Dial: brown sun-brushed
Posted at
Jan 11, 2026, 4:57 PM
Active
[WTS] 20mm Two Omega OEM Integrated Speedmaster Black Rubber Straps & One - Omega OEM Clasp - (Backordered by Omega)

20mm Two Omega OEM Integrated Speedmaster Black Rubber Straps & One - Omega OEM Clasp - (Backordered by Omega)

Omega - 032Z017245 · $350
This Omega watch has two OEM integrated black rubber straps and one stainless steel deployant clasp. It's designed to fit the Speedmaster Professional with a 20mm lug size.

  • Condition: Excellent
  • Material: Black Rubber
  • End Type: curved ends
  • Lug Size: 20mm/16mm
Posted at
Jan 11, 2026, 8:52 AM
Active

2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

  • Condition: Minty fresh
  • Case size: 42mm
  • Year: 2022
  • Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Posted at
Apr 7, 2025, 2:59 PM
Active