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 Professional Moonwatch 310.30.42.50.01.002 – 2023 – Sapphire – Full Set

Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 – 2023 – Sapphire – Full Set

A manually-wound Omega Speedmaster Professional Moonwatch with a 42mm stainless steel case and black dial, featuring a Master Chronometer certification.

  • Condition: Excellent
  • Case Size: 42mm diameter
  • Water Resistance: unknown
  • Crystal Type: Sapphire
Posted at
May 17, 2026, 6:59 PM
Active
[WTS] 2002 Omega Speedmaster Reduced Marui LE ref. 3510.21 - Full Set

2002 Omega Speedmaster Reduced Marui LE ref. 3510.21 - Full Set

Omega - 3510.21 · $7,450
This Omega Speedmaster Reduced Marui LE is a stainless steel watch with a cream dial and LumiNova lume, powered by the automatic Omega 3220 movement.

  • Condition: pristine, almost no wear, minor hairlines
  • Case material: stainless steel
  • Diameter: 39mm
  • Lug width: 18mm
Posted at
May 17, 2026, 5:25 PM
Active
[WTS] Omega Speedmaster Professional Bracelet

Omega Speedmaster Professional Bracelet

Omega - 3570.50 · $550
A Speedmaster Professional from Omega with a 1998/849 bracelet, featuring a 20mm end link and full links included.

  • Condition: Great condition
  • Bracelet type: Omega Speedmaster 1998/849
  • End link size: 20mm
Posted at
May 17, 2026, 4:41 PM
Active
[WTS] Omega Speedmaster Mark II. 327.10.43.50.01.001.

Omega Speedmaster Mark II. 327.10.43.50.01.001.

This Omega Speedmaster Mark II is a large watch that fits well on the wrist. It's in very good condition and comes with additional photos available upon request.

  • Condition: very good
  • Shipping: NJ USA
Posted at
May 17, 2026, 2:51 PM
Active
[WTS] Omega Speedmaster. 39mm. Special Dial.

Omega Speedmaster. 39mm. Special Dial.

This Omega Speedmaster features a 39mm automatic movement and a special dial with a gorgeous texture.

  • Diameter: 39mm
Posted at
May 17, 2026, 2:50 PM
Active
[WTS] Omega Speedmaster Pink Numerals Mother of Pearl Dial Automatic Chronograph – Ref. 3834.74.34 – Full Set – 2012 - Mint

Omega Speedmaster Pink Numerals Mother of Pearl Dial Automatic Chronograph – Ref. 3834.74.34 – Full Set – 2012 - Mint

Omega - 3834.74.34 · $3,490
A timeless classic from Omega's Speedmaster collection, featuring a refined and versatile take on the iconic design with a 38mm case size.

  • Condition: Very good
  • Case Size: 38mm diameter
  • Movement Type: Automatic chronograph
  • Crystal Material: Sapphire
Posted at
May 17, 2026, 2:29 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Black Dial 42mm 2026 Box & Papers - Like New

Omega Speedmaster Professional Moonwatch Black Dial 42mm 2026 Box & Papers - Like New

  • Condition: Excellent
  • Size: 42mm diameter
  • Water Resistance: 50m depth rating
  • Movement: Omega manual wind chronograph movement
Posted at
May 17, 2026, 2:26 PM
Active
[WTS] Omega Speedmaster Olympic Collection Chronograph “Olympic Timeless Collection” Ref. 3836.70.36 | Rare Mother-of-Pearl Dial with Olympic Ring Numerals | 2012 Mint Condition Full Set

Omega Speedmaster Olympic Collection Chronograph “Olympic Timeless Collection” Ref. 3836.70.36 | Rare Mother-of-Pearl Dial with Olympic Ring Numerals | 2012 Mint Condition Full Set

Omega - 3836.70.36 · $3,750
A collectible Omega Speedmaster Olympic Collection Chronograph with a rare mother-of-pearl dial featuring colorful Arabic numerals inspired by the Olympic rings, blending the playful spirit of the Olympics with the timeless DNA of the Speedmaster line.

  • Condition: Mint Condition
  • Case size: 35.5mm
  • Movement: Omega Caliber 3220 automatic chronograph with 40-hour power reserve
  • Dial type: Mother-of-pearl with Olympic ring numerals
Posted at
May 17, 2026, 2:04 PM
Active
[WTS] Omega Speedmaster Professional 18k Sedna Gold

Omega Speedmaster Professional 18k Sedna Gold

a luxury sports watch designed for astronauts, part of the iconic Speedmaster collection

  • Material: 18k Sedna Gold
Posted at
May 17, 2026, 9:54 AM
Active