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 40MM “FOIS” (First Omega In Space) Ref - 310.30.40.50.06.001 (NEW / UNWORN 2025 COMPLETE SET)

Omega - 310.30.40.50.06.001 · $7,250

The Omega Speedmaster "FOIS" is a limited edition watch commemorating the first Omega watch worn in space, featuring a 40MM case size.

Condition: New, unworn
Case diameter: 40mm
Box contents: Outer box,Inner box,Warranty card,Pictograms card,Master Chronometer card,x2 manuals,Microfiber,Travel case

Posted at

Aug 23, 2025, 8:08 PM

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Omega Speedmaster. 39mm. Olympics Edition. Sapphire. Mother of pearl dial. 🔥

Omega - Speedmaster Olympics Edition · $2,350

This Omega Speedmaster is a 39mm watch featuring a mother of pearl dial and sapphire crystal.

Condition: Clean
Size: 39mm diameter
Case material: unknown
Movement type: Automatic

Posted at

Aug 23, 2025, 5:42 PM

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Omega Speedmaster Professional White New in Box (2025 Complete Set)

Omega - 310.32.42.50.04.001 · $7,000

A brand new Omega Speedmaster Professional White on a rubber strap, complete with its full set of accessories.

Condition: New in Box (unworn)
Case material: Stainless Steel
Bracelet type: Rubber Strap
Water resistance: 50m

Posted at

Aug 23, 2025, 5:41 PM

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Second Brand New Post! August 2025 Omega Speedmaster Sapphire Complete Set $6,750 + label

Omega - 310.30.42.50.01.002 · $6,750

This is a brand new Omega Speedmaster Sapphire Complete Set in its original packaging, complete with all cards and accessories.

Condition: Mint, unworn, and unsized
Year: 08/2025
Contents: All cards, hang tag, travel case, literature, cleaning cloth

Posted at

Aug 23, 2025, 4:12 PM

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1992 Omega Speedmaster 3590.50 Tritium Dial - $4,650

A 1992 Omega Speedmaster Professional Moonwatch featuring a matte black Tritium dial and 42mm stainless steel case. The watch has been previously polished and shows minimal signs of wear.

Posted at

Aug 23, 2025, 1:44 PM

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Omega Speedmaster Reduced 3510.52 (Reverse Panda Dial)

Omega - 3510.52 · $4,500

This Omega Speedmaster Reduced features a unique 'Reverse Panda' dial and was released in Japan in the 90's. It has a smaller 39mm diameter, an automatic 3220 movement, and is in good condition for its age.

Condition: Pretty good, normal signs of wear
Model: Speedmaster
Year Origin: 1999/Japan
Movement: 3220 Automatic Movement

Posted at

Aug 23, 2025, 12:40 PM

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Omega Speedmaster Dark Side of the Moon Apollo 8 Full Set 311.92.44.30.01.001 - $7,895

Omega - 311.92.44.30.01.001 · $7,895

A Omega Speedmaster Moonwatch - Dark Side of the Moon - Apollo 8 edition, a 2019 model sold in full set with various accessories.

Condition: Excellent condition
Year: 2019
Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Card Holder, Operating Instructions Manual, Omega Watch Cloth

Posted at

Aug 23, 2025, 12:15 PM

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Brand New August 2025 Omega Speedmaster Sapphire Complete Set $6,750 + label

Omega - 310.30.42.50.01.002 · $6,750

The Omega Speedmaster Sapphire Complete Set is a brand new, unworn watch available for sale. The watch features a sandwich design with sapphire crystal and includes various accessories such as travel case, literature, and cleaning cloth.

Condition: Mint, unworn, and unsized
Year: 2025
Contents: Travel case, Speedy literature, cleaning cloth, all cards and hang tag

Posted at

Aug 23, 2025, 10:34 AM

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Omega Speedmaster First Omega in Space FOIS 311.32.40.30.01.001 $4,400

Omega - 311.32.40.30.01.001 · $4,400

The Omega Speedmaster First Omega in Space is a numbered homage to the CK2998, powered by the Lemania base workhorse Calibre 1861. It features a 39.7mm case and comes with box and papers.

Condition: Preowned - Good
Box And Papers: Yes, dated July 2016
Shipping Cost Included: yes
Payment Methods: Zelle, Venmo, USDT, Wise

Posted at

Aug 23, 2025, 8:15 AM

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