Omega Speedmaster Speedmaster Professional Moonphase / Strap

Reference 3876.50.31

Omega Speedmaster Professional Moonphase / Strap

About this watch

The Omega Speedmaster Professional Moonphase is an exquisite blend of precision, technology, and style, boasting a storied history in horology. With its classic yet sporty design, this watch exudes sophistication, featuring a black dial highlighted by the stainless steel case. The stick and dot indexes provide excellent visibility, while the moonphase complication adds a touch of elegance to its sporty demeanor. At its heart lies the Omega caliber 1866, a handwound chronograph movement renowned for precision and reliability. With a power reserve of 45 hours, it's designed to withstand daily wear and tear, making it an excellent choice for both men and women. The watch's durability is further enhanced by its sapphire crystal, ensuring that the beauty of the dial remains unblemished over time. Water-resistant up to 50 meters, this watch is suitable for splashes and brief immersions in water. Whether you're a collector, space enthusiast, or simply looking for a reliable timepiece, the Speedmaster Professional Moonphase ticks all the boxes, offering a perfect blend of functionality, style, and history.
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MSRP: $5,900
Market Price: $5,287

Key Features

  • Omega Caliber 1866 Handwound Chronograph Movement
  • 42mm Stainless Steel Case with Tachymeter Bezel
  • Sapphire Crystal for Scratch-Resistant Durability

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonphase / Strap
Reference
3876.50.31
Movement
1866
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
  • Moonphase
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Reduced “Schumacher” Red Dial - $2595 shipped! 🔥

Omega Speedmaster Reduced “Schumacher” Red Dial - $2595 shipped! 🔥

Omega - 3510.60 · $2,595
This Omega Speedmaster Reduced 'Schumacher' Red Dial watch features a red dial and comes with all chronograph functions operating perfectly.

  • Condition: very good overall condition
  • Original strap included: true
  • Strap condition: excellent
Posted at
May 13, 2026, 9:44 PM
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[WTS] 2025 Omega Speedmaster “First Omega in Space” FOIS – 39.7mm – Grey-Blue Dial – Leather Strap – Ref. 310.32.40.50.06.001 – Complete Set – $7,200 +🚢

2025 Omega Speedmaster “First Omega in Space” FOIS – 39.7mm – Grey-Blue Dial – Leather Strap – Ref. 310.32.40.50.06.001 – Complete Set – $7,200 +🚢

Omega - 310.32.40.50.06.001 · $7,200
The Omega Speedmaster “First Omega in Space” FOIS is a leather strap variant, designed to tribute the CK 2998, with a grey-blue CVD-coated dial and vintage Super-LumiNova indices. This reference honors Walter Schirra’s Speedmaster worn on the Mercury Sigma 7 mission in 1962.

  • Condition: Excellent
  • Case size: 39.7mm
  • Water resistance: 50m depth rating
  • Movement: Co-Axial Master Chronometer Cal. 3861, METAS certified, 15,000 gauss anti-magnetic
Posted at
May 13, 2026, 9:21 PM
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[WTS] 2025 OMEGA Speedmaster Moonwatch Professional White on Black Rubber Deployant 310.32.42.50.04.001 Full Set

2025 OMEGA Speedmaster Moonwatch Professional White on Black Rubber Deployant 310.32.42.50.04.001 Full Set

Omega - 310.32.42.50.04.001 · $7,399
A 2025 Omega Speedmaster Moonwatch Professional with a white lacquered dial, presented on a black rubber strap with a deployant buckle.

  • Condition: Pristine pre-owned condition, minor wear on case back and clasp
  • Case size: 42mm
  • Case thickness: 13.2mm
  • Movement: Manual-Winding Co-Axial Master Chronometer Calibre 3861 (METAS certified)
Posted at
May 13, 2026, 2:35 PM
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[WTS] Omega Speedmaster - 311.92.44.51.01.007 (Dark Side of the Moon)

Omega Speedmaster - 311.92.44.51.01.007 (Dark Side of the Moon)

Omega - 311.92.44.51.01.007
The Dark Side of the Moon is a limited edition Omega Speedmaster reference 311.92.44.51.01.007.

  • Model name: Dark Side of the Moon
Posted at
May 13, 2026, 2:02 PM
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[WTS] OMEGA Speedmaster Moonwatch 3861 Sapphire Sandwich - Very Good Condition - Watch Only on Hirsch Robby Sailcloth - ONLY $4999 SHIPPED CONUS

OMEGA Speedmaster Moonwatch 3861 Sapphire Sandwich - Very Good Condition - Watch Only on Hirsch Robby Sailcloth - ONLY $4999 SHIPPED CONUS

OMEGA - Speedmaster Moonwatch 3861 Sapphire Sandwich · $4,999
This OMEGA Speedmaster Moonwatch is for sale, a well-cared-for timepiece that runs perfectly and comes with a worn Hirsch Robby sailcloth strap. The watch has been well-maintained and shows minimal signs of wear.

  • Condition: Very Good Condition
  • Strap Material: sailcloth
  • Case Back: sapphire
Posted at
May 13, 2026, 10:13 AM
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[WTS] Omega Speedmaster Date (3513.30)

Omega Speedmaster Date (3513.30)

Omega - 3513.30 · $2,425
This Omega Speedmaster date features a silver dial on a steel bracelet, produced from 1998-2010. It comes with the hangtag and an open warranty card.

  • Condition: excellent condition for its age
  • Case Size: 39mm diameter
  • Case Material: stainless steel
  • Bracelet Material: stainless steel
Posted at
May 13, 2026, 8:25 AM
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[WTS] Omega Speedmaster 3523.80 39mm - $1,750

Omega Speedmaster 3523.80 39mm - $1,750

Omega - 3523.80 · $1,750
Up for sale is my Omega Speedmaster 3523.80 39mm, an automatic caliber Omega 1151 movement in a steel case on original Omega steel bracelet.

  • Condition: Great condition with minimal hairlines/marks on case, caseback, and bracelet
  • Caliber: Omega 1151 movement
  • Case size: 39mm diameter
  • Bracelet length adjustment: up to 7-7.25 inch wrists
Posted at
May 13, 2026, 4:06 AM
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2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

Omega - 310.30.42.50.01.002 · $6,195
This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

  • Condition: Minty fresh
  • Case size: 42mm
  • Year: 2022
  • Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet
Posted at
Apr 7, 2025, 2:59 PM
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Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint

Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint

Omega - 324.30.38.50.03.002 · $3,695
This Omega Speedmaster Chronograph features a 38mm stainless steel case, blue dial, and automatic movement.

  • Condition: Pre-Owned - Mint
  • Case size: 38mm diameter
  • Bracelet type: Stainless Steel
  • Dial color: Blue
Posted at
Apr 5, 2025, 6:13 PM
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