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 Dark Side of the Moon Vintage Black Full Set 311.92.44.51.01.006 - $8,095

Omega - 311.92.44.51.01.006 · $8,095

Up for sale is a Omega Speedmaster Moonwatch - Dark Side of the Moon - Vintage, with features such as a new brown strap and a thorough timegrapher test.

Condition: Excellent condition with minimal signs of wear
Year: 2022
Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Card Holder, Operating Instructions Manual, Extra Brown Strap

Posted at

Jun 14, 2025, 1:26 PM

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Omega Speedmaster Dark Side of the Moon Apollo 8 Full Set 311.92.44.30.01.001 - $8,295

Omega - 311.92.44.30.01.001 · $8,295

Up for sale is a Omega Speedmaster Moonwatch - Dark Side of the Moon - Apollo 8, in excellent condition with no signs of wear. It has been thoroughly tested on a timegrapher and is running well without needing service.

Condition: Excellent condition with no signs of wear
Year: 2019
Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Card Holder, Operating Instructions Manual, Omega Watch Cloth

Posted at

Jun 14, 2025, 1:08 PM

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Omega Speedmaster FOIS: First Omega in Space 311.32.40.30.01.001

Omega - 311.32.40.30.01.001 · $4,450

The Omega Speedmaster FOIS, also known as the 'First Omega in Space', was inspired by the watch worn by astronaut Wally Shirra during the 'Sigma 7' mission. It features manually powered 1861 movement and has been modified with traditional Moonwatch hands and a patina modification.

Condition: Wear throughout but no damage worth noting except some marks under lugs where strap changes occur
Case Dimensions: 39.7mm diameter
Lug Width: 19mm
Height: 47mm

Posted at

Jun 14, 2025, 11:41 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

Pre-owned Omega Speedmaster Pilot with automatic movement, stainless steel case and bracelet, black dial, and 100m water resistance. Originally purchased in April 2025.

Condition: 96% condition, slight marks on the sides and back of the case, faint marks on links and clasp, minor wear on OEM strap
Case size: 41mm diameter
Material: Stainless Steel
Dial color: Black

Posted at

Jun 13, 2025, 9:43 PM

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10/24 Omega Speedmaster White Dial Complete Set $7,400 + label

Omega - 310.30.42.50.04.001 · $7,400

The Omega Speedmaster White Dial is a complete set, including micro-adjust clasp, with no issues and minimal desk rash on the clasp.

Condition: Pre-owned with minimal desk rash on clasp, runs and functions perfectly
Year Of Manufacture: 2024
Clasp Type: micro-adjust

Posted at

Jun 13, 2025, 9:18 PM

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Omega Speedmaster chocolate Ref 311.30.42.30.13.001

Omega - 311.30.42.30.13.001 · $5,200

Unique Speedmaster chocolate dial ref 311.30.42.30.13.001, this model was only made in limited numbers and currently discontinued.

Bracelet length: 6.3 inch
New bracelet included: true

Posted at

Jun 13, 2025, 8:48 PM

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Omega Speedmaster Professional Apollo 11 L.E. 30th Anniversary

Omega - 3560.50.00 · $4,299.004

The Omega Speedmaster Professional Moonwatch 30th anniversary Apollo XI is a limited edition of 9,999 pieces, introduced in 1999 to commemorate the 30th anniversary of the Apollo 11 mission. It features a special caseback engraving with an Apollo 11 patch and is similar to the regular 3570.50.00 in all details.

Condition: Excellent pre-owned condition
Lug width: 20mm
Lug-to-lug: 48.2mm
Case size: 42 mm

Posted at

Jun 13, 2025, 8:07 PM

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