Omega Speedmaster Speedmaster Professional Moonwatch

Reference 3870.50.31

About this watch

The Omega Speedmaster Professional Moonwatch (model 3870.50.31) is a masterpiece of watchmaking. This iconic timepiece has been to the moon and back, thanks to its association with the Apollo 11 mission in 1969. At its heart lies the Omega caliber 1861, a hand-wound movement that's both reliable and precise. With a frequency of 21,600 vibrations per hour and a power reserve of 48 hours, this watch is designed to keep you on time for your next adventure. The black dial is elegantly accented by stick and dot indexes, making it both readable and stylish. Its stainless steel case with a round shape and diameter of 42.00 mm exudes sophistication, while the tachymetric bezel adds a sporty edge. Whether you're in a boardroom or at a casual gathering, this watch makes a statement. The Speedmaster's versatility is unmatched, effortlessly transitioning from a dress watch to a casual piece. Pair it with a crisp suit or a relaxed T-shirt, and it fits right in. Its durability and accuracy have made it the perfect companion for astronauts, and its rich heritage is a testament to Omega's engineering prowess.

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MSRP: $4,400

Market Price: $4,139

Key Features

Omega caliber 1861 hand-wound movement
50-meter water resistance
42mm stainless steel case with black dial
Tachymetric bezel
Chronograph functionality with small seconds, hours, and minutes hands

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonwatch

Reference

3870.50.31

Movement

1861

Movement Features

Small Seconds, Hours, Minutes
Chronograph

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Plexi

Water Resistance

Current Listings

Omega Speedmaster BSOM Moonphase 304.93.44.52.03.002 (2021) | Complete Box & Papers | $10,999 Shipped

Omega - 304.93.44.52.03.002 · $10,999

The Omega Speedmaster “Blue Side of the Moon” (2021) is a stunning and underrated modern Speedmaster variant, crafted entirely from blue ceramic with a rich blue dial and Sedna gold accents.

Condition: amazing condition overall
Year: 2021
Material: blue ceramic
Movement: running strong and keeps excellent time

Posted at

Oct 18, 2025, 10:41 PM

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Omega Speedmaster Moonphase

Omega - 3575.20 · $5,250

Up for sale is an Omega Speedmaster Moonphase ref. 3575.20, which runs great and comes with full kit and documentation.

Condition: excellent
Warranty card included: true
Shipping limited to conus: true

Posted at

Oct 18, 2025, 10:24 PM

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Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 – Full Kit – Excellent Condition – $5,900

Omega - 310.30.42.50.01.002 · $5,900

This Omega Speedmaster Professional Moonwatch is a highly sought-after model, known for its robust design and iconic status.

Condition: Excellent Condition
Movement: Automatic movement

Posted at

Oct 18, 2025, 10:53 AM

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Omega Speedmaster racing 9900 44.25mm 329.33.44.51.01.001 under warranty

Omega - 329.33.44.51.01.001 · $5,800

This is a Omega Speedmaster racing watch, model 9900, featuring a 44.25mm case size and a factory warranty until OCT 2024.

Condition: Good condition
Case size: 44.25mm
Warranty: Factory warranty until OCT 2024

Posted at

Oct 17, 2025, 9:19 PM

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Pristine Omega Speedmaster Sapphire Sandwich - Full Set!

Omega - 310.30.42.50.01.002 · $6,499

A timeless and instantly recognizable watch, meticulously cared for by the seller over two years.

Condition: Pristine
Worn: 10-12 times over two years
Crystal condition: Perfect
Bezel condition: Perfect

Posted at

Oct 17, 2025, 8:27 PM

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Omega Speedmaster 3590.50

Omega - 3590.50

Title: [WTS] Omega Speedmaster 3590.50

Posted at

Oct 17, 2025, 5:28 PM

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Omega 1861 Speedmaster Bracelet and Forstner Flatlink Contemporary

Omega - 1861 Speedmaster Bracelet and Forstner Flatlink Contemporary · $480

A Omega 1861 Speedmaster, sold with a Forstner bracelet and an additional Forstner Flatlink Contemporary. The first has some wear on the clasp and links, while the second is in excellent condition.

Condition: Forstner bracelet (worn) - Speedmaster bracelet (excellent)
Shipping Cost Uk: 10
Shipping Cost International: 25

Posted at

Oct 17, 2025, 4:05 PM

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New & Unworn 2025 Omega Speedmaster Professional Moonwatch ‘Silver Snoopy Award’ 50th 310.32.42.50.02.001 Complete

Omega - 310.32.42.50.02.001 · $15,950

The Omega Speedmaster Professional Moonwatch 'Silver Snoopy Award' is a limited edition watch celebrating the 50th anniversary of Omega's recognition from NASA astronauts for its role in the Apollo 13 mission. It features an animated caseback with a mesmerizing display of Snoopy piloting his Command and Service Module in lunar orbit.

Condition: Brand New
Year: 2025
Contents: Complete Collector Set with all the goodies

Posted at

Oct 17, 2025, 12:00 PM

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