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 Triple Date 3220.50 - 40mm - $2350

Omega - 3220.50 · $2,350

This Omega Speedmaster Triple Date 3220.50 features a classic look with additional Chronometer functionality, available for sale in very good condition.

Condition: Very good pre-owned condition
Case diameter: 40mm
Crystal condition: clean
Bracelet condition: desk rash, minor scratches

Posted at

Oct 21, 2025, 2:55 PM

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[US] Omega Speedmaster First Omega in Space - FOiS - 310.30.40.50.06.001 - Full Set - Brand New

Omega - 310.30.40.50.06.001 · $7,450

This Omega Speedmaster First Omega in Space watch is a brand new timepiece that comes with a full set, including the watch itself, box, historical manual, user manual, microfiber cloth, and other accessories. It features a fantastic condition with only stickers on the case and clasp.

Condition: Brand New
Case size: 40mm diameter
Serial number included: true

Posted at

Oct 21, 2025, 9:11 AM

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Omega Speedmaster 3861 Hesalite (6k)and Sapphire (7k) 🔥Brand New 2024🔥

Omega - 3861 Hesalite and Sapphire · $6,000

This listing is for a Brand New Omega Speedmaster 3861, available in both Hesalite and Sapphire crystal options. The watch comes complete with its original box, warranty card dated 2024, and other accessories.

Condition: Brand New
Material: Hesalite and Sapphire
Year: 2024

Posted at

Oct 21, 2025, 8:23 AM

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Omega Speedmaster Professional Sapphire Sandwich ref. 310.30.42.50.01.002

Omega - 310.30.42.50.01.002

Type: Sapphire Sandwich ref.

Posted at

Oct 20, 2025, 7:51 PM

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Omega Speedmaster Racing 44mm Automatic

Omega - 329.32.44.51.01.001 · $6,500

This Omega Speedmaster Racing is a pre-owned timepiece from 2018, featuring a leather strap with light wear and comes with its original packaging and documentation.

Condition: very good condition
Case size: 44mm
Movement: automatic

Posted at

Oct 20, 2025, 9:49 AM

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2025 Omega Speedmaster Silver Snoopy Award 50th Anniversary 310.32.42.50.02.001 - Brand New - $14,550

Omega - 310.32.42.50.02.001 · $14,550

The 2025 Omega Speedmaster Silver Snoopy Award 50th Anniversary watch is a highly sought-after edition with blue sub-dials and bezel, and a unique caseback.

Condition: Brand New
Year Of Manufacture: 2025
Includes Accessories: yes, includes inner and outer box, cards, special loupe, cleaning cloth, instruction manuals

Posted at

Oct 19, 2025, 5:57 PM

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Omega OEM Deployant Clasp – Speedmaster Ref. 117Z017553 – Micro-Adjustment - 3861 Upgrade Kit

Omega - 117Z017553 · $220

This Omega OEM deployant clasp kit is designed for Speedmaster 3861 bracelets with or without micro-adjustment feature. It has a longer design than the stock 3861 bracelet clasp and features micro-adjustment for precise sizing.

Condition: Excellent - minimal wear, fully functional
Fitment: Omega Speedmaster bracelets
Material: Stainless steel
Feature: Micro-adjustment for precise sizing

Posted at

Oct 19, 2025, 3:48 PM

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Omega Speedmaster Mother Of Pearl Dial 3834.72.35 - Original Buckle & Handmade Strap (Serviced) only for 2200$ 🚢

Omega - 3834.72.35 · $2,200

A stainless steel Omega Speedmaster with a 39mm case size and mother of pearl dial featuring green Arabic numerals. The watch has been recently serviced and is working perfectly fine.

Condition: Clean case, super clean dial and bezel
Case Size: 39mm diameter
Movement Type: Automatic

Posted at

Oct 19, 2025, 9:41 AM

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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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