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

Reference 3872.50.31

About this watch

The Omega Speedmaster Professional Moonwatch is a legendary timepiece that embodies the perfect blend of history, craftsmanship, and style. With its rich heritage dating back to 1848, this watch has been part of humanity's most significant achievements, including the moon landing. The reference 3872.50.31 features a stunning design with a polished stainless steel case, plexi glass, and a black dial with stick and dot indexes. Powered by the Omega caliber 1863, a hand-wound movement renowned for its precision and reliability, this watch is a must-have for any watch enthusiast or collector. With its luxurious leather strap, water resistance of 50 meters, and unique ability to resist shattering, the Speedmaster Professional Moonwatch is not just a timepiece but an investment that will appreciate over time. Whether you're an astronaut at heart or a casual wearer, this watch offers something special for everyone, making it a true masterpiece of horology.
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Key Features

  • Stainless steel case with polished and brushed finish
  • Plexi glass with unique ability to resist shattering
  • Black dial with stick and dot indexes
  • Omega caliber 1863 hand-wound movement with 18 jewels
  • 48-hour power reserve
  • Intuitive chronograph feature
  • Water resistance of 50 meters
  • Luxurious leather strap
  • Limited production run

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch Plexi / See-Through / Leather
Reference
3872.50.31
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 42mm 310.30.42.50.01.002 “Sapphire Sandwich” | 2024 Complete Set

Omega Speedmaster Professional 42mm 310.30.42.50.01.002 “Sapphire Sandwich” | 2024 Complete Set

2024 Omega Speedmaster Professional 'Sapphire Sandwich' 42mm watch in great condition.

  • Condition: Pre-Owned, slight wear on bracelet and clasp, marks on lugs
  • Bracelet Links: 24
  • Service History: Unknown
  • Amp Error: -1 s/d 345+
Posted at
Jan 21, 2026, 8:07 PM
Active
[WTS] Omega Speedmaster. Sapphire Sandwich. Coaxial. Automatic. Box, Papers.

Omega Speedmaster. Sapphire Sandwich. Coaxial. Automatic. Box, Papers.

The Omega Speedmaster is a popular and iconic automatic watch featuring a sapphire sandwich design.

  • Box: true
  • Papers: true
  • Movement: coaxial automatic
Posted at
Jan 21, 2026, 7:25 PM
Active
[WTS] Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

Omega Speedmaster Racing Chronograph Silver Dial Watch 326.30.40.50.02.001 Complete Set

The Omega Speedmaster Racing features a silver white dial, stainless steel case and bracelet, and chronograph movement, making it a striking and fresh take on the classic Moonwatch profile.

  • Condition: Excellent
  • Case Size: 40mm diameter
  • Movement Type: chronograph
Posted at
Jan 21, 2026, 3:06 PM
Active
[WTS] Omega Speedmaster Black Fabric Strap

Omega Speedmaster Black Fabric Strap

Omega - CWZ014117 · $240
A black fabric strap for the Omega Speedmaster Pro watch, available for sale with free shipping.

  • Condition: like new, never worn
  • Width: 20/16mm
Posted at
Jan 21, 2026, 10:32 AM
Active
[WTS] Omega Speedmaster Professional Moonwatch "Sapphire Sandwich" 
310.30.42.50.01.002 Brand New Fully Stickered / Triple Boxed

Omega Speedmaster Professional Moonwatch "Sapphire Sandwich" 310.30.42.50.01.002 Brand New Fully Stickered / Triple Boxed

The Omega Speedmaster Professional Moonwatch 'Sapphire Sandwich' is a black dial chronograph with sapphire crystal front and back, featuring the iconic tachymeter bezel and trio of subdials. The exhibition caseback shows off the Master Chronometer certified caliber 3861 movement. This watch maintains the asymmetrical lug design and twisted lugs that protect the chronograph pushers.

  • Condition: Brand new - fully stickered
  • Case size: 42mm
  • Bracelet type: Five-link stainless steel
Posted at
Jan 20, 2026, 8:26 PM
Active
2023 Steel Bracelet Omega Speedmaster 38MM 324.30.38.50.06.001 Box and Papers [WTS]

2023 Steel Bracelet Omega Speedmaster 38MM 324.30.38.50.06.001 Box and Papers

This is a 2023 Steel Speedmaster 38MM Grey dial watch with features such as chronometer, date at 6 O'clock, and water resistance up to 100 Meters.

  • Condition: Excellent
  • Movement: Omega 3330
  • Power Reserve: 52 hours
  • Crystal: Scratch resistant Sapphire Crystal
Posted at
Jan 20, 2026, 11:21 AM
Active
[WTS] Omega Speedmaster Automatic Chronograph Date — Ref. 3211.30.00 | Cal. 1164 COSC — $1,999 + Shipping

Omega Speedmaster Automatic Chronograph Date — Ref. 3211.30.00 | Cal. 1164 COSC — $1,999 + Shipping

Omega - 3211.30.00 · $1,999
This listing appears to be for an Omega Speedmaster Automatic Chronograph Date with reference number 3211.30.00, featuring Calibre 1164 and COSC certification.

Posted at
Jan 20, 2026, 8:34 AM
Active
[WTS] Omega Speedmaster 3861 Sapphire Sandwich 3861 Quick Adjust Bracelet with extras!

Omega Speedmaster 3861 Sapphire Sandwich 3861 Quick Adjust Bracelet with extras!

Omega - 3861 · $6,500
A 2022 Omega Speedmaster 3861 on warranty card with extras such as a new quick adjust clasp, old clasp, and extra links for sizing.

  • Condition: Good condition
  • Warranty status: On warranty
  • Bracelet type: Quick adjust clasp
  • Lugs condition: Show strap change wear
Posted at
Jan 20, 2026, 1:52 AM
Active
[WTS] Omega Speedmaster Date 32105000 Full Set

Omega Speedmaster Date 32105000 Full Set

Omega - 3210.50.00 · $2,450
For sale is a Omega Speedmaster Date, reference 3210.50.00, a versatile and highly wearable take on the iconic Speedmaster line.

  • Condition: Very good overall condition with light, honest wear
  • Case size: 40mm diameter
  • Movement: Omega Caliber 1164 automatic chronograph
  • Functions: Chronograph, running seconds, date at 3 o'clock
Posted at
Jan 20, 2026, 12:25 AM
Active