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.
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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 CK2998 Limited Edition “Blue Panda” - Full Set - Reduced ‼️🐼

Omega Speedmaster CK2998 Limited Edition “Blue Panda” - Full Set - Reduced ‼️🐼

The Omega Speedmaster CK2998 Limited Edition 'Blue Panda' is a striking modern Speedmaster released by Omega. It features a manual winding OMEGA calibre 1861 and a unique 'lollipop' chronograph seconds hand reminiscent of the original CK2998 model.

  • Condition: Pre-owned, excellent condition
  • Case material: stainless steel
  • Case size: 40mm diameter
  • Movement: Manual winding OMEGA calibre 1861
Posted at
Aug 22, 2025, 7:03 PM
Active
[WTS] Omega Speedmaster Schumacher Legend Edition - 42mm Red Dial - 3506.61 - Reduced!

Omega Speedmaster Schumacher Legend Edition - 42mm Red Dial - 3506.61 - Reduced!

Omega - 3506.61 · $3,850
This Omega Speedmaster Legend Red Schumacher LE is a part of Omega's 'Legend Collection' designed to celebrate the brand partnership with F1 driver Michael Schumacher. It comes in 42mm size, making it suitable for anyone.

  • Condition: Preowned with very light scratches and small dings on bezel
  • Case Size: 42mm
  • Wrist Fit: 7inch
Posted at
Aug 22, 2025, 7:00 PM
Active
[WTS]🔥NEW OMEGA SPEEDMASTER MOONWATCH PROFESSIONAL SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 8/2025 WITH STICKERS!!!🔥

🔥NEW OMEGA SPEEDMASTER MOONWATCH PROFESSIONAL SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 8/2025 WITH STICKERS!!!🔥

A brand new, unworn Omega Speedmaster Moonwatch Professional Sapphire Sandwich with a black dial and stainless steel case.

  • Condition: BRAND NEW/UNWORN WITH STICKERS
  • Case Size: 42mm diameter
  • Material: Stainless Steel
Posted at
Aug 22, 2025, 4:48 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

A rare and exquisite Omega Speedmaster Apollo XVII, a limited edition timepiece that commemorates the 45th anniversary of the final moon landing in 1972.

  • Condition: Very good condition with slight imperfections on the dial
  • Case size: 42mm
  • Bezel material: Polished Blue Ceramic
  • Dial material: Polished Blue Ceramic
Posted at
Aug 22, 2025, 10:15 AM
Active
[WTS] Omega Speedmaster Professional Quartz Digital with box - Fully Functional - ST 186.0004 - Cal.1620 -  $1999

Omega Speedmaster Professional Quartz Digital with box - Fully Functional - ST 186.0004 - Cal.1620 - $1999

Omega - ST 186.0004 · $1,999
This is an Omega Speedmaster Professional Quartz Digital watch, featuring a Cal.1620 movement and a ST 186.0004 reference number.

  • Condition: Fully functional
  • Movement: Cal.1620 quartz
  • Box: yes
Posted at
Aug 22, 2025, 1:32 AM
Active
[WTS] Omega Speedmaster “Triple Date” 33523.80

Omega Speedmaster “Triple Date” 33523.80

Omega - 33523.8 · $1,999
The Omega Speedmaster 'Triple Date' features a 3 date complication showing day, date and month.

  • Condition: Very good condition, some oxidation on hands
  • Size: 39mm diameter
  • Movement: 1150
  • Bracelet size fits: 7"
Posted at
Aug 21, 2025, 9:21 PM
Active
[WTS] Omega Speedmaster Apollo 11 30th Anniversary

Omega Speedmaster Apollo 11 30th Anniversary

Omega - 3560.50 · $3,700
A limited edition Omega Speedmaster Apollo 11 30th Anniversary watch, one of a run of 9,999 pieces worldwide, commemorating the historic mission.

  • Condition: Overall good condition with some normal wear on the case, bracelet and some light scuffs on the hesalite crystal
  • Case size: 42mm diameter
  • Movement type: 1861
  • Bracelet fit: 7 inches
Posted at
Aug 21, 2025, 9:13 PM
Active
[WTS] Omega Speedmaster Date

Omega Speedmaster Date

  • Condition: Fair with small marks and scratches
  • Dimensions: 40mm diameter
  • Bracelet links: remaining
  • Warranty status: expired
Posted at
Aug 21, 2025, 8:15 PM
Active
[WTS] BNIB Omega Speedmaster Professional - White Dial - New Release!

BNIB Omega Speedmaster Professional - White Dial - New Release!

This Omega Speedmaster Professional features a white dial and comes with its full set, including boxes, papers, and warranty.

  • Condition: Brand new in original packaging (BNIB)
  • Box And Papers: full set
  • Warranty: still valid
Posted at
Aug 21, 2025, 7:18 PM
Active