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

2023 Omega Speedmaster Professional Moonwatch Sapphire 310.30.42.50.01.002
A personal Omega Speedmaster Professional Moonwatch with Sapphire crystal in excellent condition, worn only a few times.
- Condition: Excellent
- Year Purchased: 2024
- Warranty Remaining Years: 3
- Included Accessories: Outer/Inner Box,Warranty Cards,Booklets/Manual,Links
Omega Tokyo Olympics 'Yellow Ring' Speedmaster 522.20.42.30.01.001
This Omega Speedmaster Tokyo Olympics 'Yellow Ring' features a unique design and is in good condition, with watch and box included.
- Condition: Good condition all around
- Shipping: Free shipping within the US, possible options for overseas shipping

Omega Speedmaster FOIS 31030405006001 First Omega In Space 2024 Soleil Blue
A 2024 Omega Speedmaster FOIS in Soleil Blue, purchased at an Omega Boutique and sized to a 7 inch wrist.
- Condition: Pre-owned, lightly worn
- Purchase Year: 2024
- Warranty: No mention of warranty
Omega Speedmaster Triple Date Calendar Moonphase 18k Ref. 175.0034
Omega's Speedmaster Day-Date Moonphase features a white dial, chronograph, date, day, and moon phase functions in an 18K yellow gold case with a size of 39mm.
- Condition: 90%
- Case material: 18K Yellow Gold
- Movement type: Mechanical Automatic
2021 OMEGA Speedmaster Racing - 326.30.40.50.01.001326.30.40.50.01.001
A 2021 OMEGA Speedmaster Racing, featuring a 40mm stainless steel case with scratch-resistant sapphire crystal and 100m water resistance.
- Condition: Like New
- Case Size: 40mm diameter
- Material: stainless steel
- Crystal: scratch-resistant sapphire crystal

Omega Speedmaster Racing - White Dial - 329.30.44.51.04.001 ( new / 2025 )
This Omega Speedmaster Racing Master Co-Axial features a white dial and stainless steel case.
- Condition: Brand new
- Case size: 44.25mm
- Movement type: Master Co-Axial 9900 Chronometer
Omega Speedmaster Professional Man on The Moon 3572.50
This Omega Speedmaster Professional Man on the Moon watch is approximately 20 years old, featuring nice patina hour markers and an open case back to view the manual wind movement.
- Age: around 20 years
- Case size: 42mm diameter
- Box included: true

Omega SPEEDMASTER PROFESSIONAL MOONWATCH 3861 SAPPHIRE 2023 COMPLETE SET
A 42mm stainless steel Omega Speedmaster Professional Moonwatch with a 3861 movement and sapphire crystals, purchased from an authorized dealer in 2023.
- Condition: Excellent Condition
- Movement: Manual-Winding Chronograph 3861 with Co-Axial Escapement
- Case size: 42mm
- Crystals: Sapphire Crystals

>>ReDuCeD<< OMEGA SPEEDMASTER PROFESSIONAL PRE-MOON 145.022-69
This is a pre-moon Omega Speedmaster Professional with calibre 861, featuring a 42mm diameter case and generic tan strap.
- Condition: Good vintage condition
- Movement: Omega calibre 861
- Case size: 42mm in diameter
- Serial number: 29 million from 1970