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 Moonwatch Professional 311.30.42.30.01.006 - Box & Papers

Omega - 311.30.42.30.01.006 · $5,369

The Omega Speedmaster blends iconic style with top-tier performance. Its 42mm stainless steel case and black tachymeter bezel create a bold, timeless look.

Condition: great overall condition with minor wear only seen upon close inspection
Box Papers: true
Movement: 1863 manual-winding movement
Case Back Engraving: The First Watch Worn on The Moon

Posted at

Jun 16, 2025, 9:43 AM

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Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

Omega - 311.30.42.30.03.001 · $8,200

A rare and exquisite Omega Speedmaster Apollo XVII, a limited edition timepiece that commemorates the 45th anniversary of the final moon landing in 1972. The watch features a polished blue ceramic case, bezel, and dial, as well as 18K yellow gold indexes and hour-minute hands coated in Super-LumiNova.

Condition: Very good condition with slight imperfections on the dial
Case size: 42mm diameter
Water resistance: 50m / 167ft depth rating
Movement: OMEGA Calibre 1861, Manual-Winding Chronograph Movement

Posted at

Jun 16, 2025, 9:11 AM

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Omega Speedmaster 145.022-74 ST Moonwatch

Omega - 145.022-74 ST Moonwatch · $4,150

A vintage, pristine Omega Speedmaster Professional with a Calibre 861 movement, featuring a moonphase complication and a 1171 bracelet.

Condition: Vintage Pristine
Movement: Calibre 861
Bracelet: Omega 1171
Crystal: Original

Posted at

Jun 16, 2025, 12:23 AM

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Omega Speedmaster Professional 3861 Hesalite Full set

Omega - 3861 · $5,050.005

This Omega Speedmaster Professional is in excellent condition, with a 42mm diameter and Hesalite crystal. It's dated May 2023 and has a screw-in steel caseback.

Condition: Very good
Case size: 42mm diameter
Crystal type: Hesalite
Water resistance: 50 meters

Posted at

Jun 15, 2025, 10:12 PM

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Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001 under warranty

Omega - 329.33.44.51.01.001 · $5,800

This Omega Speedmaster racing watch features a 44.25mm case size, under warranty until OCT 2024, and is available with various references.

Condition: Good condition
Warranty Status: Factory warranty under warranty until OCT 2024
Shipping Method: FedEx

Posted at

Jun 15, 2025, 9:34 PM

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Omega Speedmaster Moonwatch Professional Sapphire White Dial, Complete Set

Omega - 310.30.42.50.04.001 · $7,350

A Omega Speedmaster Moonwatch Professional Sapphire White Dial, part of a complete set including various documentation and accessories.

Condition: Excellent Pre-Owned Condition with little to no signs of wear
Warranty Valid Until: 2029
Case Size: 42mm diameter
Bezel Type: Tachymetre Bezel

Posted at

Jun 15, 2025, 9:02 PM

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MINT JAN 2025 Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001

Omega - 329.30.44.51.01.001 · $5,900

A 2025 Omega Speedmaster racing watch in pristine condition, with a 44.25mm case and original warranty. The watch is described as really clean and comes with all accessories.

Condition: Mint
Case diameter: 44.25mm
Warranty: JAN 2025

Posted at

Jun 15, 2025, 8:03 PM

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Omega Speedmaster Dark Side of the Moon Pitch Black 311.92.44.51.01.004 - Full Set - Super LumiNova

Omega - 311.92.44.51.01.004 · $8,000

The Omega Speedmaster Dark Side of the Moon 'Pitch Black' features an all-black design, blackened central hands, and Super LumiNova indices and tachymeter scale. The manual-wound cal. 9300 movement is visible through the open case back.

Condition: Very mint condition, some wear on strap due to clasp design
Movement: Manual-wound cal. 9300
Case material: Ceramic
Warranty card date: 02/2016

Posted at

Jun 15, 2025, 7:58 PM

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