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] [USA] Omega Speedmaster Professional 'Sapphire Sandwich' (310.30.42.50.01.002) – 2025 Like-New Complete Set 🚨$6,795🚨

[USA] Omega Speedmaster Professional 'Sapphire Sandwich' (310.30.42.50.01.002) – 2025 Like-New Complete Set 🚨$6,795🚨

A timeless icon, the Omega Speedmaster Professional 'Sapphire Sandwich', powered by Calibre 3861, is offered as a complete set with box, warranty cards, serial tag, and art manual. Originally dated August 2025, it remains covered under Omega's 5-year factory warranty.

  • Condition: Mint, like-new
  • Movement: Calibre 3861
  • Year: 2025
  • Warranty: 5-year factory warranty through August 2030
Posted at
Dec 28, 2025, 10:27 PM
Active
[WTS] 1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

1991 Omega Speedmaster Moonwatch Ref 3590.50 with abstract

Omega - 3590.50 · $4,099
This Omega Speedmaster Moonwatch is a 1991 model with caliber 861 movement and tritium dial and hands. The watch comes with an extract from the Omega archives matching its serial number and a vintage poster.

  • Condition: Excellent vintage condition, unpolished
  • Movement: Caliber 861
  • Serial number: 482774XX
  • Bracelet size: 6.8"
Posted at
Dec 28, 2025, 6:37 PM
Active
[WTS] Omega Speedmaster Pilot Master Chronometer 40.5mm 332.10.41.51.01.002 Automatic

Omega Speedmaster Pilot Master Chronometer 40.5mm 332.10.41.51.01.002 Automatic

This Omega Speedmaster Pilot Automatic watch is a recent release that embodies a tool watch with an unique look and feel, inspired by the 1957 original.

  • Condition: excellent plus preowned
  • Case Diameter: 40.8mm
  • Water Resistance Depth: 100m
  • Movement Power Reserve: 60 hrs
Posted at
Dec 27, 2025, 10:42 PM
Active
[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

This Omega Speedmaster Dark Side of the Moon features a full-ceramic case and buckle.

  • Condition: Mint, like-new
  • Case material: full-ceramic
  • Payment methods: Zelle, Venmo, or Western Union
Posted at
Dec 27, 2025, 8:35 PM
Active
[WTS] [EU] Omega Speedmaster Olympic games Beijing

[EU] Omega Speedmaster Olympic games Beijing

This Omega Speedmaster Olympic games Beijing is an automatic chronograph with a white dial and tachymeter bezel, featuring 50m water resistance. It comes in a stainless steel case size of approx. 39mm.

  • Condition: Good - scratches on bezel, scratches on crystal, dents under bezel, small chip on sapphire crystal
  • Case size: 39mm diameter
  • Movement type: Automatic
  • Complications: Chronograph
Posted at
Dec 27, 2025, 2:00 PM
Active
[WTS] Omega Speedmaster. 39mm. Sapphire. 3539.50. 🔥

Omega Speedmaster. 39mm. Sapphire. 3539.50. 🔥

Omega - 3539.50 · $3,275
This Omega Speedmaster is a 39mm automatic watch with a sapphire crystal, available for sale.

  • Case size: 39mm diameter
  • Crystal type: sapphire
Posted at
Dec 27, 2025, 10:01 AM
Active
[WTS] Omega Speedmaster Racing Panda. Full set. Unworn bracelet. Extra OEM straps. Warranty 2026. $7500 obo

Omega Speedmaster Racing Panda. Full set. Unworn bracelet. Extra OEM straps. Warranty 2026. $7500 obo

Omega - Speedmaster · $7,500
A Omega Speedmaster Racing Panda with a full set, unworn bracelet, extra OEM straps and warranty until 2026 for sale.

  • Warranty Expiration Year: 2026
Posted at
Dec 26, 2025, 9:03 PM
Active
[WTS]🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH BRAND NEW 12/2025 COMPLETE🔥

🔥OMEGA SPEEDMASTER SAPPHIRE SANDWICH BRAND NEW 12/2025 COMPLETE🔥

This listing is for a brand new OMEGA Speedmaster Sapphire Sandwich, dated December 2025.

  • Condition: BRAND NEW/UNWORN
  • Case size: 42mm diameter
  • Material: Stainless Steel
Posted at
Dec 26, 2025, 4:38 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.30.42.50.01.002 – Full Set – $6,500

Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.30.42.50.01.002 – Full Set – $6,500

A newer Omega Speedmaster Moonwatch Professional, purchased in April 2023 and worn sparingly since.

  • Condition: Excellent with minor scratches and swirling on polished surfaces
  • Case material: Sapphire crystal
  • Bracelet: Micro adjust
Posted at
Dec 26, 2025, 3:27 PM
Active