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][US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

[US] Omega Speedmaster Broad Arrow - White Dial - 42mm - 3551.20.00 - Full Set

Omega - 3551.20.00 · $4,200
A 42mm Omega Speedmaster Broad Arrow with a white dial, part of the full set including box and manuals.

  • Condition: Fantastic condition with minor hairlines
  • Case size: 42mm diameter
Posted at
Dec 22, 2025, 7:12 AM
Active
[WTS] Omega Speedmaster Moonwatch White Dial

Omega Speedmaster Moonwatch White Dial

Selling my white dial Omega Speedmaster Moonwatch in excellent condition.

  • Condition: Excellent with minor wear
  • scratches: small on clasp and bracelet links
  • Warranty card date: 04/25
Posted at
Dec 22, 2025, 3:12 AM
Active
[WTS] Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition 311.10.39.30.01.001 - With accessories - Repost

Omega Speedmaster “The 1957 Trilogy” 60th Anniversary Limited Edition 311.10.39.30.01.001 - With accessories - Repost

The Omega Speedmaster 'The 1957 Trilogy' is a limited edition watch celebrating the 60th anniversary of this iconic model.

  • Condition: Excellent pre-owned condition
  • Accessories: booklets, straps, strap changer, travel case, tag Double box, open card
Posted at
Dec 22, 2025, 12:11 AM
Active
[WTS] 2025 Omega Speedmaster “White Dial” – Ref. 310.30.42.50.04.001 – 2025 – Full Set – Excellent Condition

2025 Omega Speedmaster “White Dial” – Ref. 310.30.42.50.04.001 – 2025 – Full Set – Excellent Condition

This is a 2025 Omega Speedmaster with a white dial, full set and in phenomenal condition.

  • Condition: Excellent
  • Case size: 42mm
  • Movement: Omega Co-Axial Master Chronometer chronograph
Posted at
Dec 21, 2025, 9:30 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🟤

Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🟤

Omega - 145.022-69 · $15,150
A 1969 Omega Speedmaster Moonwatch in beautiful condition, featuring a tropical brown dial with heavy yellow patina and a blue bezel.

  • Condition: Beautiful condition, with thick and sharp lugs, but polished in the past.
  • Size: 42mm
  • Year: 1969
  • Case material: unknown
Posted at
Dec 21, 2025, 9:19 PM
Active
[WTS] 2025 Omega Speedmaster Two Counters Titanium Blue 44.25mm Full Set

2025 Omega Speedmaster Two Counters Titanium Blue 44.25mm Full Set

A modern take on the Speedmaster, this titanium two-register chronograph provides a lightweight feel and refined appearance with a blue dial and bezel.

  • Condition: Excellent
  • Movement: 9300 Co-Axial movement
  • Power reserve: 60h power reserve
  • Case material: Titanium
Posted at
Dec 21, 2025, 8:40 PM
Active
[WTS] Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $10,995
This Omega Speedmaster Ed White Ref. 105.003-65 is a historic and collectible variant, featuring a stunning brown tropical dial with rich patina and tritium hands that glow under UV light.

  • Condition: very good
  • Diameter: 39mm
  • Year: 1965
  • Material: stainless steel
Posted at
Dec 21, 2025, 3:19 PM
Active
[WTS] Omega Speedmaster Reduced 39mm - Mother of Pearl Dial - Price Reduced ‼️

Omega Speedmaster Reduced 39mm - Mother of Pearl Dial - Price Reduced ‼️

This Omega Speedmaster features a unique Mother of Pearl dial that stands out, and comes with a factory white strap and buckle.

  • Condition: decent condition
  • Case Material: unknown
  • Bezel Condition: light hairlines throughout
Posted at
Dec 21, 2025, 2:54 PM
Active
[WTS] Omega Speedmaster “Silver Snoopy Award” – Nylon Strap

Omega Speedmaster “Silver Snoopy Award” – Nylon Strap

Omega - 310.32.42.50.02.001 · $15,500
This Omega Speedmaster 'Silver Snoopy Award' features a silver dial with blue accents and a Snoopy subdial, set on a stainless steel case and paired with a blue nylon strap. It is powered by the manual wind Caliber 3861 movement.

  • Condition: New / Unworn
  • Material: Stainless Steel
  • Movement: Caliber 3861, Co-Axial Master Chronometer
  • Bracelet type: Blue Nylon Strap with Folding Clasp
Posted at
Dec 21, 2025, 2:25 PM
Active