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 - 3510.50

Omega Speedmaster Reduced - 3510.50

Omega - 3510.50 · $2,495
A Omega Speedmaster Reduced in good pre-owned condition, featuring a 39mm case size and chronograph function that will require service.

  • Condition: good pre-owned condition
  • Size: 39mm diameter
Posted at
Apr 29, 2026, 1:01 PM
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[WTS] Omega Speedmaster 3519.50.00 “Schumacher World Champion 2001” LE — Racing Dial — $2,599 Shipped (Tariff Covered)

Omega Speedmaster 3519.50.00 “Schumacher World Champion 2001” LE — Racing Dial — $2,599 Shipped (Tariff Covered)

Omega - 3519.50.00 · $2,599
This Omega Speedmaster ref. 3519.50.00 'Schumacher World Champion 2001' Limited Edition features a distinctive racing dial and is powered by an automatic chronograph movement.

  • Condition: Honest condition with light signs of use
  • Case size: 39mm
  • Lug-to-lug: 44mm
  • Thickness: 14mm
Posted at
Apr 29, 2026, 12:39 PM
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[WTS] Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Price Reduced!

Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Price Reduced!

Omega - 310.30.42.50.01.002 · $6,595
This Omega Speedmaster Professional features a sapphire crystal front and display caseback, showcasing the stunning omega movement.

  • Condition: near like-new condition
  • Size: 42mm diameter
  • Kit contents: full kit with original double box, all 3 omega cards
Posted at
Apr 29, 2026, 12:25 PM
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[WTS] Omega Speedmaster Broad Arrow 44.25mm Grey Dial 321.10.44.50.02.001 $2,450

Omega Speedmaster Broad Arrow 44.25mm Grey Dial 321.10.44.50.02.001 $2,450

Omega - 321.10.44.50.02.001 · $2,450
A Omega Speedmaster with a grey dial and 44.25mm case size for sale.

  • Condition: Slight scratches from normal use
  • Diameter: 44.25mm
  • Shipping region: Singapore
  • Shipping time: 4-5 business days to US
Posted at
Apr 29, 2026, 5:48 AM
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[WTS] Omega Speedmaster Professional "Sapphire Sandwich" Ref. 3573.50 - $4,750

Omega Speedmaster Professional "Sapphire Sandwich" Ref. 3573.50 - $4,750

Omega - 3573.50 · $4,750
This Omega Speedmaster Professional features a stainless steel case, 42mm in diameter, with sapphire crystals front and back, powered by an Omega Calibre 1863 movement. It is a manual wind chronograph from approximately 2005.

  • Condition: Good condition with slight wear marks and one scratch
  • Case size: 42mm
  • Crystal material: Sapphire
  • Movement type: Manual wind chronograph
Posted at
Apr 29, 2026, 12:06 AM
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[wts] 2026 Omega Speedmaster “Reverse Panda” 310.30.42.50.01.004 $9599 + FREE SHIPPING

2026 Omega Speedmaster “Reverse Panda” 310.30.42.50.01.004 $9599 + FREE SHIPPING

Omega - 310.30.42.50.01.004 · $9,599
2026 Omega Speedmaster “Reverse Panda” with a 42mm steel case, black dial with white sundials, and a 3861 movement providing 50 hours of power reserve.

  • Condition: Preowned, 9.9/10 Cosmetic Condition
  • Case size: 42mm
  • Movement: 3861
  • Power reserve: 50 Hours
Posted at
Apr 28, 2026, 11:12 PM
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[WTS] OMEGA Speedmaster Professional MOONWATCH Sapphire Sandwich

OMEGA Speedmaster Professional MOONWATCH Sapphire Sandwich

OMEGA - 311.30.42.30.01.006 · $5,799
This is the iconic OMEGA Speedmaster Professional Moonwatch Sapphire Sandwich, featuring a timeless design and highly sought-after sapphire crystal configuration.

  • Condition: mint condition
  • Case material: steel
  • Band material: steel
  • Crystal material: sapphire
Posted at
Apr 28, 2026, 10:28 PM
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[wts] 2022 OMEGA SPEEDMASTER PROFESSIONAL 310.30.42.50.01.002 $6050 + FREE SHIPPING

2022 OMEGA SPEEDMASTER PROFESSIONAL 310.30.42.50.01.002 $6050 + FREE SHIPPING

OMEGA - 310.30.42.50.01.002 · $6,050
2022 OMEGA SPEEDMASTER PROFESSIONAL with manual wind 3861 movement and 50-hour power reserve.

  • Condition: Excellent pre owned condition
  • Case Size: 42mm diameter
  • Movement: Manual Wind 3861
  • Power Reserve: 50 Hours
Posted at
Apr 28, 2026, 10:20 PM
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[WTS] Omega Speedmaster Moonwatch “Reverse Panda” Ref: 310.30.42.50.01.004 (2026) Like New Complete $10,250

Omega Speedmaster Moonwatch “Reverse Panda” Ref: 310.30.42.50.01.004 (2026) Like New Complete $10,250

Omega - 310.30.42.50.01.004 · $10,250
A modern Omega Speedmaster Moonwatch with a unique 'Reverse Panda' dial and the upgraded 3861 METAS movement in excellent condition.

  • Condition: Excellent, like new
  • Case size: 42mm
  • Movement: Calibre 3861, manual-wind, Co-Axial Master Chronometer (METAS)
  • Power reserve: 50hr
Posted at
Apr 28, 2026, 9:19 PM
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