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.

Buy Now on Jomashop

This is an affiliate link

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 Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped

Omega - 310.30.42.50.01.002 · $6,400

A 2022 Omega Speedmaster Moonwatch Professional Sapphire with a sapphire crystal and display caseback, featuring the classic 42mm Speedmaster design with Omega's Master Chronometer caliber.

Condition: Great
Case size: 42mm
Movement type: Manual-wind chronograph
Caliber: Omega Caliber 3861, Master Chronometer

Posted at

Dec 26, 2025, 2:09 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Date Casino | 3210.52 | 40mm

Omega - 3210.52 · $2,499

Additional Details: Omega Speedmaster Casino 40 3210.52 is a 40mm watch with a 7.5 inch bracelet.

Case size: 40mm
Bracelet length: 7.5"
Payment methods: Zelle, Venmo, WU

Posted at

Dec 25, 2025, 4:26 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional (31130423001005) Calibre 1861 with Full Set Big Box -$4500

Omega - 31130423001005 · $4,500

This listing is for an Omega Speedmaster Professional Moonwatch purchased in 2021. It features the classic Hesalite dial and comes with a full set of accessories.

Condition: Excellent, normal wear
Bracelet material: stainless steel
Accessories included: NATO Straps, magnifying glass, full presentation box, papers, warranty card, tools

Posted at

Dec 25, 2025, 1:27 AM

Active

View listing on r/WatchExchange

Omega Speedmaster Moonwatch Professional Sapphire Sandwich 310.30.42.50.01.002

Omega - 310.30.42.50.01.002 · $5,500

This is the Omega Speedmaster Moonwatch Professional Sapphire Sandwich, a luxury watch featuring high-end materials and craftsmanship.

Condition: Mint
Box and papers: complete set, including warranty card
Links: all links included

Posted at

Dec 24, 2025, 9:33 AM

Active

View listing on r/WatchExchange

[US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002

Omega - 329.30.43.51.02.002 · $5,125

This Omega Speedmaster Chronoscope features a 43mm white panda dial, and has been well maintained.

Condition: Fantastic condition with minor hairlines
Case size: 43mm diameter

Posted at

Dec 24, 2025, 5:36 AM

Active

View listing on r/WatchExchange

omega speedmaster Mario. Year-1999. Excellent condition. Box and Papers included

Omega - Marui (Speedmaster) · $4,200

This Omega Speedmaster is a rare Japanese model, known as the Marui, from 1999. It's in great condition with its original box and papers.

Condition: Excellent condition
Year: 1999
Location: Japan

Posted at

Dec 23, 2025, 9:37 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional White Dial (Full Set 9/2025)

Omega - 310.32.42.50.04.001 · $7,400

Up for sale is a beautiful Omega Speedy Pro White Dial, it comes with box & papers dated 09/2025 and has been worn only a few times.

Condition: Great condition with minimal wear
Movement type: Manual Wind
Size: 42mm diameter
Accessories included: Box & papers

Posted at

Dec 23, 2025, 8:49 PM

Active

View listing on r/WatchExchange

Omega 20mm OEM Integrated Speedmaster Moonwatch Professional Black Rubber Strap (Sold Out) & Omega OEM Deployant Clasp $550 Shipped

Omega - 032Z017245 · $550

This is a listing for an Omega Speedmaster Moonwatch Professional with a black rubber strap and deployant clasp. The watch features a 20mm lug size.

Material: Black Rubber
Ends: curved
Lug width: 20mm/16mm

Posted at

Dec 23, 2025, 8:36 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Milano-Cortina 2026 LE (BNIB)

Omega - 522.30.38.50.04.001 · $7,800

A special Speedmaster created to celebrate the Milano-Cortina 2026 Winter Games with a distinctive design. This limited edition blends classic Speedy DNA with unique dial and color accents.

Condition: New, unworn (BNIB)
Size: 38mm diameter
Movement: Automatic Cal 3330
Accessories: Box & papers

Posted at

Dec 23, 2025, 7:59 PM

Active

View listing on r/WatchExchange