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 Moonwatch Sapphire 3861 - full kit bracelet plus leather

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
Active
[WTS] Omega Speedmaster Moonwatch Professional - 311.30.42.30.01.006 - 42mm - Big Box - Full Set

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

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

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

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
Active
[WTS] 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
Active
[WTS] 2026 Omega Speedmaster Moonwatch Professional 310.32.42.50.04.002 – Brand New / Partially Stickered

2026 Omega Speedmaster Moonwatch Professional 310.32.42.50.04.002 – Brand New / Partially Stickered

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
Active
[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 is a 44.25mm masterpiece crafted from black ceramic, commemorating the 50th anniversary of the Apollo 8 mission.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869
Posted at
Mar 13, 2026, 8:27 PM
Active
[WTS] OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,000🔥

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,000🔥

OMEGA - 311.30.40.30.01.001 · $16,000
A faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk, featuring a stainless steel timepiece with a black ceramic bezel and column-wheel chronograph movement.

  • Condition: UNWORN
  • Movement: Calibre 321
  • Diameter: 39.7mm
  • Case material: stainless steel
Posted at
Mar 13, 2026, 8:17 PM
Active
[WTS] Omega Speedmaster Professional “Reverse Panda” 42MM - Ref 310.30.42.50.01.004 (NEW / UNWORN 2026 COMPLETE SET)

Omega Speedmaster Professional “Reverse Panda” 42MM - Ref 310.30.42.50.01.004 (NEW / UNWORN 2026 COMPLETE SET)

Omega - 310.30.42.50.01.004 · $10,800
For sale is a 42MM Omega Speedmaster Professional ‘Reverse Panda’, in true new condition, with all original packaging and documentation.

  • Condition: new, unworn, unsized
  • Warranty date: 03/12/2026
  • Included items: outer sleeve, outer box, inner box, cards, manuals, AD shipping coffin, serialized hangtag, UPC sticker, microfiber, travel case
Posted at
Mar 13, 2026, 3:59 PM
Active
[WTS] Omega Speedmaster Racing 40mm Blue Dial – Full Set – $2,950

Omega Speedmaster Racing 40mm Blue Dial – Full Set – $2,950

Up for sale is my Omega Speedmaster Racing with the blue dial and black textured sub-dials, featuring a 40mm automatic chronograph powered by the Omega Co-Axial Caliber 3330.

  • Condition: Very good pre-owned condition
  • Case size: 40mm diameter
  • Strap: Aftermarket strap and original Omega stainless steel bracelet included
Posted at
Mar 13, 2026, 3:44 PM
Active