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 Professional Moonphase

Omega Speedmaster Professional Moonphase

Omega - 3575.20 · $5,450
Up for sale is an Omega Speedmaster Professional Moonphase reference 3575.20, featuring date, chronograph, tachymeter and moonphase functions in a 42mm case with 18k white gold bezel.

  • Condition: excellent
  • Case size: 42mm
  • Movement: 1866 manual wind movement
  • Production years: 2000-2005
Posted at
Feb 1, 2025, 9:36 AM
Active
Omega Speedmaster Professional Chronograph Moonphase 3576.50

Omega Speedmaster Professional Chronograph Moonphase 3576.50

Omega - 3576500 · $4,810
This Omega Speedmaster Professional Chronograph Moonphase features a 42mm stainless steel case and is powered by a mechanical manual movement.

  • Condition: 90%
  • Size: 42mm diameter
  • Case material: Stainless Steel
  • Movement type: Mechanical Manual (1866)
Posted at
Feb 1, 2025, 8:48 AM
Active
Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( new )

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( new )

This Omega Speedmaster Moonwatch Professional features a white dial, 42mm stainless steel case, and is powered by the Omega Master Chronometer movement.

  • Condition: Brand new
  • Case size: 42mm
  • Movement: Omega Master Chronometer
Posted at
Jan 31, 2025, 3:12 PM
Active
1995 Omega Speedmaster Professional Ref. 3590.50 with Box & Papers

1995 Omega Speedmaster Professional Ref. 3590.50 with Box & Papers

Omega - 3590.50 · $4,500
A sought-after 1995 Omega Speedmaster Professional Ref. 3590.50 with a unique vintage charm, powered by the reliable Caliber 861 and paired with a comfortable bracelet.

  • Condition: Excellent (little to no signs of wear)
  • Case width: 42mm
  • Movement: Manual Cal. 861
  • Year: 1995
Posted at
Jan 31, 2025, 1:29 PM
Active
2008 Omega Speedmaster 'Reduced' Ref. 3539.50 with Box & Papers

2008 Omega Speedmaster 'Reduced' Ref. 3539.50 with Box & Papers

Omega - 3539.50 · $3,850
The 2008 Omega Speedmaster 'Reduced' Ref. 3539.50 is a great entry into the Omega brand, measuring at 39mm and featuring a scratch-resistant sapphire crystal and fold-over clasp.

  • Condition: Excellent (very little to no signs of wear)
  • Case width: 39mm
  • Movement: Automatic
  • Strap length: 7.50"
Posted at
Jan 31, 2025, 1:22 PM
Active
2017 Omega Speedmaster Moonphase 44.25mm Blue Dial - 304.33.44.52.03.001 - B&Ps

2017 Omega Speedmaster Moonphase 44.25mm Blue Dial - 304.33.44.52.03.001 - B&Ps

This Omega Speedmaster Moonphase features a stainless steel case, deep blue ceramic bezel, and a dial with a detailed moonphase.

  • Condition: Very Good Condition - Minimal wear
  • Case size: 44.25mm diameter
  • Movement: Caliber 9904
Posted at
Jan 30, 2025, 7:57 PM
Active
Omega Speedmaster professional moonwatch

Omega Speedmaster professional moonwatch

This Omega Speedmaster Professional Moonwatch is a highly sought after model from August 2020, featuring a stainless steel case and a black dial.

  • Condition: amazing condition
  • Caliber: 1861 movement
  • Case material: Stainless Steel
  • Glass type: Hesalite
Posted at
Jan 30, 2025, 7:43 PM
Active
2020 Omega Speedmaster FOIS Ref: 311.32.40.30.01.001 with B+P (Modded Dial)

2020 Omega Speedmaster FOIS Ref: 311.32.40.30.01.001 with B+P (Modded Dial)

A 2020 Omega Speedmaster First Omega In Space "FOIS" with a modded dial, featuring an authentic Omega black chronograph dial and applied logo for a vintage charm.

  • Condition: Excellent
  • Case size: 40mm
  • Serial number: 78,8XX,XXX
  • Edition number: 14xxx
Posted at
Jan 30, 2025, 7:20 PM
Active
1999 Omega Speedmaster Broad Arrow Ref: 3594.50 with Box and Papers

1999 Omega Speedmaster Broad Arrow Ref: 3594.50 with Box and Papers

Omega - 3594.50 · $3,850
A 1999 Omega Speedmaster Broad Arrow with a 42mm case and excellent condition stainless steel bezel, black dial, and broad arrow hands. It comes with the original box, papers, booklet holder, and warranty card.

  • Condition: Excellent
  • Case size: 42mm
  • Bracelet links: 15
  • End links: 840
Posted at
Jan 30, 2025, 7:18 PM
Active