Omega Speedmaster Speedmaster Professional Moonwatch Sapphire Sandwich / Strap

Reference 3873.50.31

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
50

Current Listings

Omega SPEEDMASTER MOONPHASE 18K YELLOW GOLD STEEL GREEN BEZEL GREY DIAL 2024

Omega SPEEDMASTER MOONPHASE 18K YELLOW GOLD STEEL GREEN BEZEL GREY DIAL 2024

This Omega Speedmaster Moonwatch features a 18K yellow gold and stainless steel case with a green ceramic bezel and grey dial.

  • Condition: Excellent, unpolished condition
  • Case size: 44.25mm diameter
  • Movement: Omega Co-Axial Master Chronometer 9904 chronograph movement
  • Warranty: under 5 years factory warranty remaining
Posted at
Feb 17, 2025, 8:42 PM
Active
Omega Speedmaster Reduced "Marui" - 3510.21 - White - Steel - 39mm

Omega Speedmaster Reduced "Marui" - 3510.21 - White - Steel - 39mm

Omega - 3510.21 · $5,995
A vintage Omega Speedmaster Reduced 'Marui' watch in excellent condition, featuring a white dial and stainless steel case.

  • Condition: Pre-Owned, Excellent Grade
  • Case Size: 39mm diameter
  • Material: Stainless Steel
  • Dial Color: White
Posted at
Feb 16, 2025, 10:59 PM
Active
2006 Omega Speedmaster "Schumacher Limited Edition" Ref. 3559.32 with Box & Paper

2006 Omega Speedmaster "Schumacher Limited Edition" Ref. 3559.32 with Box & Paper

Omega - 3559.32 · $5,950
The Omega Speedmaster Michael Schumacher Limited Edition features a striking 42mm stainless steel case, white panda dial with black subdials, and the reliable automatic Caliber 3301 movement. It has a tachymeter bezel, sapphire crystal, and 100m water resistance, blending style with functionality.

  • Condition: Excellent (little to no wear)
  • Movement: Automatic
  • Case width: 42mm diameter
  • Strap length: 8.00 inches
Posted at
Feb 16, 2025, 1:50 PM
Active
>>ReDuCeD<< OMEGA SPEEDMASTER AUTOMATIC 3211.31 PANDA DIAL

>>ReDuCeD<< OMEGA SPEEDMASTER AUTOMATIC 3211.31 PANDA DIAL

Omega - 3211.31 · $1,995
A stainless steel Omega Speedmaster Automatic with Panda dial, featuring the Omega 1164 movement and a diameter of 40mm.

  • Condition: Excellent
  • Movement: Omega 1164
  • Bracelet Size: fits up to 7.25"
Posted at
Feb 16, 2025, 9:46 AM
Active
Omega Speedmaster Chronograph Racing Chronometer Carbon Black Dial 3552.59.00

Omega Speedmaster Chronograph Racing Chronometer Carbon Black Dial 3552.59.00

Omega - 3552.59.00 · $3,120
The Omega Speedmaster Chronograph Racing Chronometer features a carbon black dial and is powered by a mechanical automatic movement.

  • Condition: 98%
  • Case Material: Stainless Steel
  • Movement Type: Mechanical Automatic (Cal. 3301)
  • Case Size: 42mm
Posted at
Feb 15, 2025, 8:26 AM
Active
Omega SPEEDMASTER SILVER SNOOPY AWARD 50TH ANNIVERSARY EXTRA 3861 BRACELET 2022

Omega SPEEDMASTER SILVER SNOOPY AWARD 50TH ANNIVERSARY EXTRA 3861 BRACELET 2022

2022 Omega Speedmaster Professional Moonwatch 50th Anniversary Silver Snoopy Award with a silver dial and blue subdials on a stainless steel case. Features a new style Omega 3861 Speedmaster PCL bracelet.

  • Condition: Mint, Unpolished
  • Case size: 42mm diameter
  • Material: Stainless Steel
  • Strap material: Blue fabric
Posted at
Feb 14, 2025, 11:07 PM
Active
2010 Omega Speedmaster 'Reduced' Ref. 3510.50 with Box & Papers

2010 Omega Speedmaster 'Reduced' Ref. 3510.50 with Box & Papers

Omega - 3510.50 · $2,950
The Omega Speedmaster 'Reduced' Ref. 3510.50 is a great entry into the world of luxury watches, measuring at 39mm and featuring a automatic movement with Luminova hands.

  • Condition: Excellent (very little to no signs of wear)
  • Movement: Automatic
  • Case width: 39mm
  • Strap length: 7.50"
Posted at
Feb 14, 2025, 2:40 PM
Active
Omega Moonshine Gold Panda Speedmaster Professional Moonwatch Box Papers

Omega Moonshine Gold Panda Speedmaster Professional Moonwatch Box Papers

Omega - 310.62.42.50.99.001 · $22,600
This is a Moonshine Gold Omega Speedmaster Professional Moonwatch with a Panda dial, featuring an 18k gold case and manual winding co-axial movement with 50 hour power reserve.

  • Condition: Near Mint (96%)
  • Case material: 18k gold
  • Diameter: 42mm
  • Movement: Omega Caliber 3861
Posted at
Feb 14, 2025, 3:21 AM
Active
Omega SPEEDMASTER CALIBRE 321 ED WHITE MOONWATCH 2023 WARRANTY FULL SET

Omega SPEEDMASTER CALIBRE 321 ED WHITE MOONWATCH 2023 WARRANTY FULL SET

Omega - 311.30.40.30.01.001 · $15,975
A 2023 Omega Speedmaster Professional Moonwatch Calibre 321 in stainless steel with manual-winding chronograph movement and sapphire crystals, featuring a 39.7mm diameter case.

  • Condition: Excellent, unpolished condition
  • Movement: Calibre 321
  • Case material: Stainless Steel
  • Crystal material: Sapphire
Posted at
Feb 13, 2025, 10:20 PM
Active