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
Omega Speedmaster Chronograph Racing Chronometer Carbon Black Dial 3552.59.00
The Omega Speedmaster Chronograph Racing Chronometer features a carbon black dial and is powered by a mechanical automatic movement.
- Condition: 98%
- Case Material: Stainless Steel
- Movement Type: Mechanical Automatic (Cal. 3301)
- Case Size: 42mm

Omega SPEEDMASTER SILVER SNOOPY AWARD 50TH ANNIVERSARY EXTRA 3861 BRACELET 2022
2022 Omega Speedmaster Professional Moonwatch 50th Anniversary Silver Snoopy Award with a silver dial and blue subdials on a stainless steel case. Features a new style Omega 3861 Speedmaster PCL bracelet.
- Condition: Mint, Unpolished
- Case size: 42mm diameter
- Material: Stainless Steel
- Strap material: Blue fabric

2010 Omega Speedmaster 'Reduced' Ref. 3510.50 with Box & Papers
The Omega Speedmaster 'Reduced' Ref. 3510.50 is a great entry into the world of luxury watches, measuring at 39mm and featuring a automatic movement with Luminova hands.
- Condition: Excellent (very little to no signs of wear)
- Movement: Automatic
- Case width: 39mm
- Strap length: 7.50"

Omega Moonshine Gold Panda Speedmaster Professional Moonwatch Box Papers
This is a Moonshine Gold Omega Speedmaster Professional Moonwatch with a Panda dial, featuring an 18k gold case and manual winding co-axial movement with 50 hour power reserve.
- Condition: Near Mint (96%)
- Case material: 18k gold
- Diameter: 42mm
- Movement: Omega Caliber 3861

Omega SPEEDMASTER CALIBRE 321 ED WHITE MOONWATCH 2023 WARRANTY FULL SET
A 2023 Omega Speedmaster Professional Moonwatch Calibre 321 in stainless steel with manual-winding chronograph movement and sapphire crystals, featuring a 39.7mm diameter case.
- Condition: Excellent, unpolished condition
- Movement: Calibre 321
- Case material: Stainless Steel
- Crystal material: Sapphire
Omega Speedmaster Moonwatch Sapphire 310.30.42.50.01.002 LNIB 2023
This Omega Speedmaster Moonwatch is a wonderful timepiece that comes with all the original accessories, including links, tag, and three dated cards from 2023.
- Condition: Like new in box (LNIB)
- Shipping insurance type: WW insured shipping
- Payment methods: bank wire or credit cards + fee's

2021 Omega Speedmaster Moonwatch 42mm 310.30.42.50.01.001 Steel Black Dial
This is a 2021 Omega Speedmaster Moonwatch 42mm watch with a stainless steel black dial and Hesalite crystal.
- Condition: Excellent overall condition
- Original boxed: true
- Papers included: true
- Warranty card date: 2021

Omega SPEEDMASTER PROFESSIONAL MOONWATCH WHITE DIAL 2024 WARRANTY FULL SET
This is a new 2024 Omega Speedmaster Professional Moonwatch with a stainless steel case and white dial. It features a manual-winding chronograph movement with co-axial escapement.
- Condition: Excellent, unpolished condition
- Movement: 3861, manual-winding chronograph
- Case size: 42mm diameter
- Crystals: Sapphire crystals
Omega Speedmaster Snoopy 11/2024 Brand New
This Omega Speedmaster Snoopy is a brand new watch, released in November 2024. It features the iconic Snoopy design and comes with all original packaging and documentation.
- Condition: New
- Status: Brand New
- Year Of Release: 2024