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 Reduced 39mm Serviced ⏱

Omega Speedmaster Reduced 39mm Serviced ⏱

  • Condition: Pre-owned, serviced
  • Case Size: 39mm diameter
  • Lug To Lug: 45mm length
  • Lug Width: 18mm width
Posted at
Jan 28, 2026, 9:30 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)

Omega Speedmaster Professional Moonwatch Steel Step Dial Yellow Patina 1969 (Serviced)

Omega - 145.022-69 · $4,995
This Omega Speedmaster Moonwatch features a step dial and yellow patina, showcasing visible signs of use that add character.

  • Condition: Very nice overall condition, with honest wear consistent with age
  • Size: 42mm diameter
  • Year: 1969
  • Case condition: Visible signs of use that add character
Posted at
Jan 28, 2026, 9:24 PM
Active
[WTS] 2018 Omega Speedmaster 44mm Ceramic Dark Side Of The Moon 311.92.44.51.01.007 Full Set

2018 Omega Speedmaster 44mm Ceramic Dark Side Of The Moon 311.92.44.51.01.007 Full Set

2018 Omega Speedmaster Dark Side Of The Moon, a black ceramic watch with a mechanical chronograph movement.

  • Condition: Excellent Preowned Condition with almost no signs of wear on the case and bezel.
  • Case material: Black Ceramic
  • Bezel: Black Ceramic Bezel
  • Dial: Gloss Black Ceramic Dial
Posted at
Jan 28, 2026, 8:28 PM
Active
[WTS] Omega Speedmaster Reduced

Omega Speedmaster Reduced

Omega - 3510.50 · $2,500
Selling my Omega Speedy Reduced, a 39mm case size watch with a bracelet that fits about an 18cm wrist.

  • Case Size: 39mm diameter
  • Wrist Fit: fits about 18cm wrist
Posted at
Jan 28, 2026, 8:21 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch 3573.50

Omega Speedmaster Professional Moonwatch 3573.50

Omega - 3573.50 · $4,350
For sale is an Omega Speedmaster Professional Moonwatch reference 3573.50, this watch is in excellent condition with hardly any signs of wear.

  • Condition: Excellent
  • Payment Methods Accepted: crypto, other methods including a fee
  • Local Pickup Available: yes
  • Trade In Eligible Brands: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Jan 28, 2026, 2:23 PM
Active
[WTS] Omega Speedmaster Sapphire Sandwich 310.30.42.50.01.002

Omega Speedmaster Sapphire Sandwich 310.30.42.50.01.002

A Omega Speedmaster Moonwatch Professional 'Sapphire Sandwich' in excellent condition, featuring a 3861 movement and a full set with bracelet.

  • Condition: Excellent, minor fit issues with bracelet
  • Bracelet Length: ~7.5"
  • Links Extra: 2
Posted at
Jan 28, 2026, 2:20 PM
Active
[WTS] Omega speedmaster Hesalite Full set $4,200

Omega speedmaster Hesalite Full set $4,200

Omega - Speedmaster · $4,200
This is a listing for an Omega Speedmaster with Hesalite crystal.

  • Key1: Hesalite
Posted at
Jan 28, 2026, 1:19 PM
Active
[WTS] Omega Speedmaster Sapphire Sandwich 310.30.42.50.01.002

Omega Speedmaster Sapphire Sandwich 310.30.42.50.01.002

A Omega Speedmaster Moonwatch Professional with a 3861 movement and sapphire crystal caseback.

  • Condition: Excellent, minor fitment issue on the bracelet
  • Movement: Calibre 3861
  • Bracelet size: ~7.5" wrist, with 2 extra links for adjustment
Posted at
Jan 28, 2026, 11:17 AM
Active
[WTS] Omega Speedmaster FOIS 310.30.40.50.06.001 — Full Set — 2024 — Warranty to 2029

Omega Speedmaster FOIS 310.30.40.50.06.001 — Full Set — 2024 — Warranty to 2029

This Omega Speedmaster FOIS is a modern reissue of the model worn by astronaut Wally Schirra during the Mercury-Atlas 8 mission. It features straight lugs, a symmetrical case, and the hand-wound Caliber 3861 with Master Chronometer certification.

  • Condition: great pre-owned condition, light normal wear
  • Caliber: hand-wound Caliber 3861
  • Warranty Expires: 2029
  • Case Size: 40mm diameter
Posted at
Jan 28, 2026, 11:03 AM
Active