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][US] Omega Speedmaster '57 - Blue Dial - 40.5mm - 332.10.41.51.03.001 - Full Set

[US] Omega Speedmaster '57 - Blue Dial - 40.5mm - 332.10.41.51.03.001 - Full Set

This Omega Speedmaster '57 features a blue dial and 40.5mm case size.

  • Condition: Fantastic condition with minor hairlines on clasp, case, and bracelet
  • Size: 40.5mm diameter
  • Functions: perfectly mechanically
Posted at
May 13, 2025, 8:12 AM
Active
[WTS] Omega Speedmaster 145022-69 straight writing - serviced. Box and guarantee. No trades. $5750

Omega Speedmaster 145022-69 straight writing - serviced. Box and guarantee. No trades. $5750

Omega - 145022-69 · $5,750
Additional details were not provided about the watch itself in this listing

  • Serviced: yes with details
  • Box: included
  • Guarantee: included
Posted at
May 12, 2025, 9:00 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50

Omega Speedmaster Reduced 3510.50

Omega - 3510.50 · $1,750
A Omega Speedmaster Reduced watch on an AM strap that runs a little slow.

  • Condition: Used - minor issue (runs a little slow)
  • Strap: AM
  • Movement Issue: runs a little slow
Posted at
May 12, 2025, 8:48 PM
Active
[WTS] ✨ For Sale: Omega Speedmaster Date 3511.80.00 (1998) iconic timepiece in excellent condition!

✨ For Sale: Omega Speedmaster Date 3511.80.00 (1998) iconic timepiece in excellent condition!

Omega - 3511.80.00 · $2,100
The Omega Speedmaster Date features a stunning blue dial, classic 39mm stainless steel case, and automatic chronograph movement.

  • Condition: Excellent
  • Case size: 39mm diameter
  • Movement: Automatic Chronograph
Posted at
May 12, 2025, 5:29 PM
Active
[WTS] Omega Speedmaster Reduced 3510.50 GREAT CONDITION

Omega Speedmaster Reduced 3510.50 GREAT CONDITION

Omega - 3510.50 · $2,500
This Omega Speedmaster Reduced is in great condition and comes with a black fabric strap.

  • Condition: Near mint condition
  • Year of production: 1999
  • Additional strap type: Black fabric Barton strap 18mm
Posted at
May 12, 2025, 4:39 PM
Active
[WTS] 2023 Omega Speedmaster Moonphase Blue Aventurine – Complete Set – 304.93.44.52.03.002

2023 Omega Speedmaster Moonphase Blue Aventurine – Complete Set – 304.93.44.52.03.002

The Omega Speedmaster Moonphase Blue Aventurine features a blue ceramic case and bezel with a stunning blue Aventurine dial, reminiscent of a star-filled night sky.

  • Condition: Excellent
  • Case material: blue ceramic
  • Bezel material: blue ceramic
  • Diameter: 44.25mm
Posted at
May 12, 2025, 2:29 PM
Active
[WTS] Omega Speedmaster Blue Side of the Moon 304.93.44.52.03.001

Omega Speedmaster Blue Side of the Moon 304.93.44.52.03.001

Omega Speedmaster Blue Side of the Moon, overall in great condition, running as expected with all chrono features working properly.

  • Condition: Superb shape with minor wear on case and strap
  • Water resistance: 30m
  • Strap condition: showing signs of wear
Posted at
May 12, 2025, 1:34 PM
Active
1991 Omega Speedmaster Ref: 3590.59 Apollo XI 20th Anniversary with Box and Papers

1991 Omega Speedmaster Ref: 3590.59 Apollo XI 20th Anniversary with Box and Papers

Omega - 3590.59 · $6,950.007
A 1991 Omega Speedmaster Ref: 3590.59 Apollo XI 20th Anniversary watch in excellent condition, featuring a tritium dial with creamy yellow patina and an engraved limited edition number.

  • Condition: Very nice with some wear and a ding on the side of the case
  • Serial Number: 48,25X,XXX
  • Case Size: 42mm diameter
  • Bracelet Links: 23 links
Posted at
May 12, 2025, 1:21 PM
Active
1999 Omega Speedmaster Broad Arrow Ref: 3594.50 with Box and Papers

1999 Omega Speedmaster Broad Arrow Ref: 3594.50 with Box and Papers

Omega - 3594.50 · $3,550.004
This is a 1999 Omega Speedmaster Broad Arrow Ref: 3594.50, featuring a black chronograph dial with Luminova stick markers and a stainless steel bezel.

  • Condition: Excellent
  • Case Size: 42mm
  • Bracelet Links: 15 links
Posted at
May 12, 2025, 1:20 PM
Active