Omega Speedmaster Speedmaster Professional Moonwatch Sapphire Sandwich / Strap

Reference 3873.50.31

Omega Speedmaster Professional Moonwatch Sapphire Sandwich / Strap

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.
Buy Now on Jomashop
This is an affiliate link
MSRP: $5,400
Market Price: $3,887

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 Mark II. 327.10.43.50.01.001.

Omega Speedmaster Mark II. 327.10.43.50.01.001.

Omega - 327.10.43.50.01.001 · $3,895
This Omega Speedmaster Mark II is a high-end watch with a large wrist size. It's in very good condition and comes with additional photos available upon request.

  • Condition: Very good condition
  • Wrist size: large
Posted at
Jan 27, 2026, 9:02 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster. 39mm. Special Dial.

Omega Speedmaster. 39mm. Special Dial.

Omega · $2,450
This is an Omega Speedmaster with a 39mm case, featuring a special dial and automatic movement.

  • Case size: 39mm diameter
  • Dial texture: Gorgeous texture dial
Posted at
Jan 27, 2026, 7:46 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster 3861 'Hesalite' edition Warranty dated 2020 $3900

Omega Speedmaster 3861 'Hesalite' edition Warranty dated 2020 $3900

Omega - 3861 · $3,900
Warranty dated 2020.

Posted at
Jan 27, 2026, 11:14 AM
Active
View listing on r/WatchExchange
OMEGA SPEEDMASTER PROFESSIONAL MOONWATCH 35735000 also known as Sapphire Sandwich. Warranty card dated 2011. Comes with all accessories, box and papers as bought new. Can provide references to serious buyer. [WTS] $5750

OMEGA SPEEDMASTER PROFESSIONAL MOONWATCH 35735000 also known as Sapphire Sandwich. Warranty card dated 2011. Comes with all accessories, box and papers as bought new. Can provide references to serious buyer. $5750

OMEGA - 35735000 · $5,750
This Omega Speedmaster Professional Moonwatch, also known as the Sapphire Sandwich, is a pre-owned timepiece with a warranty card dated 2011. It comes with all original accessories, box, and papers.

  • Condition: New with accessories and box
  • Year: 2011
Posted at
Jan 27, 2026, 3:35 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster 3520.53 Box, Manual, Card - $2,850

Omega Speedmaster 3520.53 Box, Manual, Card - $2,850

Omega - 3520.53 · $2,850
This is a Omega Speedmaster 3520.53 Full Kit in good condition, featuring an automatic movement and a steel case on an original Omega Steel bracelet.

  • Condition: Good condition with usage marks and minimal oxidation on subdials
  • Case size: 39mm
  • Bracelet size range: 7.25-7.5 inch wrists
  • Movement type: Automatic
Posted at
Jan 26, 2026, 9:09 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Broadarrow. $3450 only !! Very Accurate...

Omega Speedmaster Broadarrow. $3450 only !! Very Accurate...

Omega - Speedmaster Broadarrow · $3,450
The Omega Speedmaster Broadarrow is a high-end watch for sale, described as very accurate.

  • Shipping: Fedex with insurance
  • Location: NJ USA
Posted at
Jan 26, 2026, 7:41 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Legend Schumacher ref 3506.61 like new *PRICE DROP*

Omega Speedmaster Legend Schumacher ref 3506.61 like new *PRICE DROP*

Omega - 3506.61 · $4,350
This Omega Speedmaster Legend Schumacher edition features a striking red dial, engraved case back, and stainless steel bracelet with full links.

  • Condition: Like new, unworn
  • Case materials: stainless steel
  • Bracelet size: full links attached
Posted at
Jan 26, 2026, 7:01 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Reduced ref 3222.80 like new *PRICE DROP*

Omega Speedmaster Reduced ref 3222.80 like new *PRICE DROP*

Omega - 3222.80 · $3,350
This Omega Speedmaster Day-Date ref 3222.80 features a vibrant blue dial, stainless steel bracelet, day, date, month, chronograph, and 24-hour indicators.

  • Condition: like new
  • Case material: stainless steel
  • Bracelet type: stainless steel with full links
Posted at
Jan 26, 2026, 6:53 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Mark 40 3513.53

Omega Speedmaster Mark 40 3513.53

Omega - 3513.53
Posted at
Jan 26, 2026, 5:34 PM
Active
View listing on r/WatchExchange