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

Omega Speedmaster Date 1957 Limited Edition �2,009� BOXES/PAPERS/SERVICED!
This Limited Edition Speedmaster was produced in just 2,009 pieces specifically for the Japanese market. It comes with outer white box, missing inner red box, manuals, hangtag, service paperwork/parts, and all 3 cards.
- Condition: pre-owned, nice condition with typical cosmetic wear on the case and bracelet
- Bezel Type: Fixed with Tachymetric Scale
- Band Material: Stainless Steel
- Case Diameter: 40mm

NEW 2025 Omega Speedmaster Moonwatch Professional Chronograph 42mm White Dial
This is a new 2025 Omega Speedmaster Moonwatch Professional Chronograph with a 42mm stainless steel case and a white dial.
- Condition: Brand New/Unworn
- Box And Papers: Yes
- Warranty Years: 5
OMEGA Speedmaster Dark Side of the Moon 311.92.44.51.01.005 44mm w/BOX & PAPERS
The OMEGA Speedmaster Dark Side of the Moon is a 44mm watch featuring a black ceramic case, dial, and bezel, with a sapphire crystal and exhibition caseback. It has a chronograph complication and date display at 6:00.
- Condition: Good preowned condition
- Case size: 44.25 mm
- Movement: 9300 Caliber Movement

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