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.

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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

Current Listings

Omega Speedmaster Professional (Sapphire Sandwich) 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $8,200

This Omega Speedmaster Professional 'Sapphire Sandwich' is a highly sought-after model, purchased in 2024 and comes as a complete set with original boxes, warranty cards, and travel case. It's in amazing condition with all functions working normally.

Condition: like-new condition, practically zero wear marks
Original boxes: true
Warranty cards year: 2024
Strap type: aftermarket rubber strap

Posted at

Dec 18, 2025, 1:59 PM

Active

View listing on r/WatchExchange

2021 Omega Speedmaster Dark Side Of The Moon 44.25mm Black Ceramic - $8,000

Omega - 311.92.44.30.01.001 · $8,000

2021 Omega Speedmaster Dark Side Of The Moon Apollo 8 with a 44.25mm black ceramic case, featuring an adjustable leather strap and additional black textile strap.

Condition: Excellent overall condition
Case size: 44.25mm diameter
Warranty: 5 year manufacturer warranty

Posted at

Dec 18, 2025, 1:36 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Michael Schumacher The Legend Collection $3,499

Omega - 321.30.44.50.01.001 · $3,499

The Omega Speedmaster Michael Schumacher The Legend Collection is a limited run watch that celebrates the world of motorsport and Michael Schumacher, with a sleek checkered carbon fiber dial and sporty red accents.

Condition: great pre-owned condition with minor wear marks
Case diameter: 44mm
Lug width: 21mm
Water resistance: 100m depth rating

Posted at

Dec 18, 2025, 1:33 PM

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Omega "Silver Snoopy" Speedmaster 2025

Omega - 310.32.42.50.02.001 · $15,499

This Omega Speedmaster Silver Snoopy Award pays tribute to NASA honoring Omega with the Silver Snoopy Award in 1970 for its crucial role in Apollo 13's safe return.

Condition: Brand new, unworn
Case size: 42 mm
Water resistance: 50 m

Posted at

Dec 17, 2025, 5:41 PM

Active

View listing on r/WatchExchange