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][US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set

[US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set

Up for sale is an Omega Speedmaster First Omega in Space - FOiS - Full Set, Watch functions perfectly mechanically, without issue.

  • Condition: Fantastic condition with few hairlines on case, clasp, and bracelet
  • Case condition: few hairlines
  • Bracelet condition: few hairlines
Posted at
May 12, 2026, 7:02 AM
Active
[WTS] Omega Speedmaster Pro White

Omega Speedmaster Pro White

A beautiful Omega Speedmaster Pro White dial, complete with full kit and card dated 09/2025.

  • Condition: great condition with minimal wear on the case
  • Movement: 3861 Manual Wind
  • Size: 42mm diameter
  • Accessories: Box & papers
Posted at
May 11, 2026, 9:40 PM
Active
[WTS] Omega Speedmaster Dark Side Of The Moon DSOTM Black Ceramic "Dark Vader" 310.92.44.51.01.001

Omega Speedmaster Dark Side Of The Moon DSOTM Black Ceramic "Dark Vader" 310.92.44.51.01.001

Omega - 310.92.44.51.01.001 · $13,250
This Omega Speedmaster Dark Side of the Moon 'Dark Vader' features a slim manual wind case and matte finished grained dial with red lacquered chrono seconds hand.

  • Condition: Excellent, Mint condition
  • Case size: 44mm
  • Warranty: until 04/2026
Posted at
May 11, 2026, 8:44 PM
Active
[WTS] 1969 Omega Speedmaster Mark II Chronograph 145.014 Racing Dial

1969 Omega Speedmaster Mark II Chronograph 145.014 Racing Dial

Omega - 145.014 · $9,000
a 1969 Omega Speedmaster Mark II Chronograph with a racing dial

  • Year: 1969
Posted at
May 11, 2026, 4:51 PM
Active
[WTS] Omega Speedmaster 3310.10 Vintage 18K Yellow Gold with Steel ($2200)

Omega Speedmaster 3310.10 Vintage 18K Yellow Gold with Steel ($2200)

Omega - 3310.10 · $2,200
This Omega Speedmaster features a 39mm case, an upgraded dial with white and gold accents, and is running within +10 seconds per day. It has been authenticated by eBay and comes with an authentication card.

  • Condition: Pre-owned with wear
  • Case size: 39mm diameter
  • Serial number date: 1989
Posted at
May 11, 2026, 11:58 AM
Active
[WTS] Omega Speedmaster Apollo 17 45th Anniversary 311.30.42.30.03.001 $6,900

Omega Speedmaster Apollo 17 45th Anniversary 311.30.42.30.03.001 $6,900

This Omega Speedmaster Apollo 17 is a commemorative edition of the iconic watch, featuring a unique design and excellent condition.

  • Condition: Excellent, freshly polished
  • Length: 18.5cm bracelet length
  • Shipping: 4-5 business days to US
Posted at
May 11, 2026, 8:55 AM
Active
[WTS][US] Omega Speedmaster Moonwatch Professional - Reverse Panda - 42mm - 310.30.42.50.01.004 - Full Set - BRAND NEW

[US] Omega Speedmaster Moonwatch Professional - Reverse Panda - 42mm - 310.30.42.50.01.004 - Full Set - BRAND NEW

Omega - 310.30.42.50.01.004 · $10,700
A brand new Omega Speedmaster Moonwatch Professional in reverse panda style with a 42mm case size.

  • Condition: Brand new, unworn, and pristine
  • Case Size: 42mm
  • Box And Papers: true
Posted at
May 11, 2026, 7:48 AM
Active
[WTS] Omega Speedmaster Reduced 3510.21 Limited Edition (2,000 Pcs) Marui 39mm , B&P  - $5,350

Omega Speedmaster Reduced 3510.21 Limited Edition (2,000 Pcs) Marui 39mm , B&P - $5,350

Omega - 3510.21 Marui · $5,350
Up for sale is my Omega Speedmaster 3510.21, a limited edition watch with an automatic movement and 39mm case.

  • Condition: Very good condition (8.9/10)
  • Movement type: Automatic
  • Case size: 39mm
  • Bracelet type: Original Omega Steel
Posted at
May 10, 2026, 9:10 PM
Active
[WTS] Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.32.42.50.01.002 – Full Set – $6,500

Omega Speedmaster Moonwatch Professional 3861 Sapphire 310.32.42.50.01.002 – Full Set – $6,500

This Omega Speedmaster Moonwatch Professional Sapphire Sandwich features a 42mm stainless steel case and the 3861 Omega Master Chronometer movement.

  • Case Size: 42mm diameter
  • Material: stainless steel
  • Movement: Omega Master Chronometer
Posted at
May 10, 2026, 6:36 PM
Active