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 Date 3210.50.00

Omega - 3210.50.00 · $2,500

A Omega Speedmaster Date in good working order with a 7.5 inch wrist size and a removable bracelet.

Condition: Excellent
Bracelet length adjustment: 7 removable links
Wrist size compatibility: up to 7.5"
Features verified via video conference: true

Posted at

Jun 19, 2025, 6:33 PM

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1997 Omega Speedmaster 'Gemini V' LE of 150 PCS (Ref. 345.0022)

Omega - 345.0022 · $7,999

The watch commemorates the Gemini V mission, featuring the NASA mission patch in the 9 o'clock sub-dial and is part of a limited release of 150 models. The case is 42mm and features an Omega 1499 bracelet with 842 end pieces.

Condition: Excellent/like new
Case size: 42mm
Bracelet type: Omega 1499 with 842 end pieces
Box and papers included: Original inner/outer boxes and booklets

Posted at

Jun 19, 2025, 6:32 PM

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Omega Speedmaster Reduced Date Annual Calendar Chronograph Silver Dial (Papers/Mint)

Omega - 3521.30.00 · $2,300

The Omega Speedmaster Reduced Triple Calendar features a compact stainless steel case, silver dial, and automatic movement with chronograph, day, date, and month functions.

Condition: mint, minimal signs of wear
Case size: 39mm diameter
Bracelet size: fits wrists up to 7.5” (19.5 cm)
Movement: automatic

Posted at

Jun 19, 2025, 2:22 PM

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Omega Speedmaster Dark Side of the Moon 311.92.44.30.01.001 Complete Set 2021

Omega - 311.92.44.30.01.001 · $8,395

This Omega Speedmaster Moonwatch - Dark Side of the Moon - Apollo 8 is a 2021 model featuring a unique design.

Condition: Very Good
Year: 2021
Warranty: Factory warranty
Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Operating Instructions Manual, Omega Watch Cloth

Posted at

Jun 19, 2025, 1:58 PM

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Omega Speedmaster 3511.50

Omega - 3511.50 · $1,700

Up for sale is my Omega Speedmaster date ref 3511.50, a Japan exclusive model with excellent timekeeping and highly reliable ETA7750 movement.

Condition: Great condition
Movement: ETA7750
Bracelet size compatibility: up to 7 inches

Posted at

Jun 19, 2025, 10:08 AM

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Open Card Omega Speedmaster Dark Side Of The Moon 311.92.44.30.01.001 - Mint Condition With Box and Papers

Omega - 311.92.44.30.01.001 · $55,000

This Omega Speedmaster Dark Side Of The Moon is a highly sought-after model, known for its unique design and technical capabilities.

Condition: Mint condition
Box: Yes, comes with box
Papers: Yes, comes with papers

Posted at

Jun 19, 2025, 9:30 AM

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Pre-Owned Omega Speedmaster Pilot 332.10.41.51.01.002

Omega - 332.10.41.51.01.002 · $9,299.009

This pre-owned Omega Speedmaster Pilot is a stainless steel watch with a black dial and automatic movement. It has a 41mm case size and water resistance of up to 100 meters.

Condition: 96% condition with faint marks on the sides and back of the case, 93% condition for the bracelet, and 97% condition for an OEM strap
Material: Stainless Steel
Dial color: Black
Case size: 41mm diameter

Posted at

Jun 18, 2025, 10:00 PM

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View listing on WatchUseek

Omega Speedmaster Hesalite 3861 with quick adjust bracelet

Omega - 3861 · $4,650

This Omega Speedmaster Hesalite 3861 is in excellent condition, featuring a quick adjust bracelet and minimal wear. It comes with the full kit, including warranty cards, spare links, paperwork, and an original sales receipt.

Condition: Excellent
Crystal type: Hesalite
Bracelet type: Quick adjust
Movement accuracy: +0 to +5 seconds per day

Posted at

Jun 18, 2025, 9:02 PM

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