Omega Speedmaster Speedmaster Professional Moonphase / Strap

Reference 3876.50.31

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.
Buy Now on Jomashop
This is an affiliate link
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] [CANADA] Omega Speedmaster Reduced - MOP Dial - 39mm

[CANADA] Omega Speedmaster Reduced - MOP Dial - 39mm

Omega - 3534.79 · $2,400
A unique Omega Speedmaster Reduced featuring a mother of pearl dial with vibrant red Arabic numerals, available in a 39mm case size.

  • Condition: Very well preserved with expected wear for the age
  • Case Size: 39mm diameter
  • Movement: Omega automatic chronograph
  • Dial Material: Mother of pearl
Posted at
Oct 24, 2025, 12:39 PM
Active
[WTS] Omega Speedmaster ‘57 Blue Dial Full Set 331.10.42.51.03.001

Omega Speedmaster ‘57 Blue Dial Full Set 331.10.42.51.03.001

This Omega Speedmaster '57 Blue Dial features a blue dial and red chrono hands, dated 2015, and is in good condition with some scratches. It comes as a full set with original box, warranty cards, and extra links.

  • Condition: Good condition with scratches, serviced in 2017
  • Case diameter: 41.5mm
  • Lug width: 20mm
Posted at
Oct 24, 2025, 1:51 AM
Active
[WTS] Omega Speedmaster Day Date Blue Dial 3523.80 Automatic $1600

Omega Speedmaster Day Date Blue Dial 3523.80 Automatic $1600

Omega - 3523.80 · $1,600
This Omega Speedmaster Day Date features a blue dial and is powered by an automatic movement.

  • Condition: Mint
  • Case Size: 39mm diameter
  • Bracelet Length: 17.5cm
Posted at
Oct 23, 2025, 9:32 PM
Active
[WTS] Omega Speedmaster Reduce Mother of Pearl White Dial (Original Bracelet) - 2600$ Shipped

Omega Speedmaster Reduce Mother of Pearl White Dial (Original Bracelet) - 2600$ Shipped

A lovely Omega Speedmaster reduced on the original omega bracelet with a Mother of Pearl white dial.

  • Condition: Working as it should, unknown recent service history
  • Bracelet size: 6.8 inches, with micro adjusts
  • Photos available: on Imgur
Posted at
Oct 23, 2025, 9:28 PM
Active
[WTS] Omega Speedmaster Rattrapante Split Seconds 3540.50 - Carbon Dial - $2600 SHIPPED

Omega Speedmaster Rattrapante Split Seconds 3540.50 - Carbon Dial - $2600 SHIPPED

Omega - 3540.50 · $2,600
This Omega Speedmaster Rattrapante Split Seconds features a rare reference with a rattrapante (split-seconds) chronograph and a robust automatic movement. The watch has a 42mm diameter and a beautiful 3D Carbon Dial.

  • Condition: Good condition with light scratches on the case, bezel and bracelet.
  • Case Size: 42mm
  • Dial Material: Carbon
Posted at
Oct 23, 2025, 8:01 PM
Active
[WTS] Omega Speedmaster. Mother of pearl dial. 39mm. Sapphire Crystal. Automatic. Olympics Special Edition.

Omega Speedmaster. Mother of pearl dial. 39mm. Sapphire Crystal. Automatic. Olympics Special Edition.

Omega - Speedmaster · $2,295
This Omega Speedmaster is a 39mm automatic watch featuring a mother of pearl dial and sapphire crystal. It's an Olympics Special Edition model.

  • Condition: Clean
  • Diameter: 39mm
  • Case material:
  • Movement: Automatic
Posted at
Oct 23, 2025, 7:27 PM
Active
[WTS] BNIB 2025 OMEGA Speedmaster Moonwatch Professional 310.30.42.50.01.001 Full Set 5 Year Warranty

BNIB 2025 OMEGA Speedmaster Moonwatch Professional 310.30.42.50.01.001 Full Set 5 Year Warranty

A brand new, unworn OMEGA Speedmaster Moonwatch Professional with a full set of accessories and a 5-year factory warranty.

  • Condition: New, unsized/unworn
  • Size: 42mm diameter
  • Year: 2025
  • Warranty: 5 year factory warranty
Posted at
Oct 23, 2025, 7:23 PM
Active
[WTS] Reduced Price! Omega Speedmaster “Triple Date” 3521.30.00 – Fully Overhauled by Omega Service Center (Jan 2025) – $2,175 OBO Shipped (CONUS)

Reduced Price! Omega Speedmaster “Triple Date” 3521.30.00 – Fully Overhauled by Omega Service Center (Jan 2025) – $2,175 OBO Shipped (CONUS)

Omega - 3521.30.00 · $2,175
For sale is my Omega Speedmaster Chronograph 'Triple Date' (Ref. 3521.30.00), a fully overhauled timepiece with excellent condition and functionality.

  • Condition: Excellent post-service condition — running perfectly
  • Case Material: stainless steel
  • Case Size: 39mm diameter
  • Lug Width: 18mm
Posted at
Oct 23, 2025, 2:49 PM
Active
[WTS] Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

This Omega Speedmaster Apollo XVII is a limited edition watch commemorating the 45th anniversary of the final moon landing in 1972, featuring a polished blue ceramic dial and stainless steel case.

  • Condition: Very good condition with slight imperfections on the dial
  • Case Diameter: 42mm
  • Water Resistance: 50m / 167ft
  • Movement Type: Manual-Winding Chronograph Movement
Posted at
Oct 23, 2025, 9:37 AM
Active