Omega Speedmaster Speedmaster Professional Moonwatch Sapphire Sandwich / Strap
Reference 3873.50.31
About this watch
The Omega Speedmaster Professional Moonwatch Sapphire Sandwich, also known as the 3873.50.31, is a testament to the brand's rich history and commitment to precision. This luxury watch features a stunning black dial with contrasting white stick and dot indexes, giving it a classic yet modern vibe suitable for both formal and casual occasions. The round stainless-steel case strikes a perfect balance between presence and elegance, measuring 42mm in diameter. A sapphire crystal on both the front and back of the watch enhances durability and provides a stunning view of the intricate movement through the open case back. With its iconic design, reliable Omega caliber 1863 movement, and versatile wearability, this watch earns its place in any collection. Whether you're a history buff, a watch connoisseur, or someone looking to elevate your style, the Speedmaster is a worthy companion. It's not just about telling time; it's about cherishing every moment.
Key Features
- Omega caliber 1863 movement
- 48-hour power reserve
- 21,600 vibrations per hour
- Chronograph function for timing events
- Sapphire crystal on front and back of the watch
- Water resistance up to 50 meters
- Leather strap with secure buckle
Specifications
- Brand
- Omega
- Family
- Speedmaster
- Model
- Speedmaster Professional Moonwatch Sapphire Sandwich / Strap
- Reference
- 3873.50.31
- Movement
- 1863
- Movement Features
-
- Hours, Minutes, Small Seconds
- Chronograph
- Case
- Stainless Steel 42mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 50
Current Listings
![[WTS] Omega Speedmaster CK2998 Limited Edition (Ref. 311.33.40.30.02.001) – 2016 – #1885/2998 – Full Set $7250](https://preview.redd.it/hkc9z09rl9kf1.jpg?width=640&crop=smart&auto=webp&s=12590635d8e89930e5c760fe312e2c95156eb765)
Omega Speedmaster CK2998 Limited Edition (Ref. 311.33.40.30.02.001) – 2016 – #1885/2998 – Full Set $7250
This is a 2016 Omega Speedmaster CK2998 Limited Edition, one of only 2,998 made worldwide. It features a silver dial with deep blue subdials and tachy bezel.
- Condition: Excellent
- Limited edition quantity: 2998
- Box included: full set: inner/outer box, warranty cards, manuals, Omega presentation box
- Straps included: two Aaron Bespoke straps (purple gator mounted + extra)
![[WTS] 2014 Omega Speedmaster 57 - Full Set (no box)](https://preview.redd.it/uj4m50tht8kf1.jpg?width=640&crop=smart&auto=webp&s=fce4d3209d7d7b7ba9ba9e826b41048d0c524801)
2014 Omega Speedmaster 57 - Full Set (no box)
A 2014 Omega Speedmaster 57 with a 41.5mm case, powered by the caliber 9300 movement.
- Condition: Pre-owned
- Movement: caliber 9300 (column wheel vertical clutch)
![[WTS] Omega Speedmaster. 39mm. Chronograph. Automatic.](https://preview.redd.it/isrgip8kr8kf1.jpeg?auto=webp&s=35a08460840cdff247e52a239d337b75efa0f049)
Omega Speedmaster. 39mm. Chronograph. Automatic.
This Omega Speedmaster is a 39mm chronograph automatic watch, available for sale.
- Case size: 39mm diameter
- Movement type: Automatic
2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete
This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.
- Condition: Minty fresh
- Case size: 42mm
- Year: 2022
- Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint
This Omega Speedmaster Chronograph features a 38mm stainless steel case, blue dial, and automatic movement.
- Condition: Pre-Owned - Mint
- Case size: 38mm diameter
- Bracelet type: Stainless Steel
- Dial color: Blue
Omega Speedmaster 321 Ed White
This Omega Speedmaster 321 Ed White is an original purchase from a US OB in 2023, worn sparingly since.
- Condition: Good condition with minor scuffs
- Warranty: includes warranty cards
- Links: all links included
2023 Omega Speedmaster �SNOOPY� 50th Anniversary 310.32.42.50.02.001 BOXES/PAPER
This is a 2023 Omega Speedmaster �SNOOPY� 50th Anniversary model, one of the most exclusive pieces in the watch world. It features a stainless steel case with a silver dial and comes with an OEM Omega stainless steel bracelet.
- Condition: Excellent pre-owned
- Case diameter: 42mm
- Water resistance: 50m depth rating
- Movement type: Manual
Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)
This Omega Speedmaster Moonwatch Professional features a 42mm stainless steel case and is powered by the 3861 Omega Master Chronometer Movement.
- Condition: Brand new
- Case size: 42mm
- Movement type: 3861 Omega Master Chronometer
Omega Speedmaster Moonwatch Hesalite - 3861 - 310.30.42.50.01.001 (new / 2025)
A brand new Omega Speedmaster Moonwatch Professional Hesalite with a stainless steel case and 3861 Omega Master Chronometer movement.
- Condition: Brand new
- Case size: 42mm diameter
- Movement: Omega Master Chronometer