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 Professional Moonwatch Sapphire Sandwich 311.30.42.30.01.006 Full Set

OMEGA - 311.30.42.30.01.006 · $6,300

The OMEGA Speedmaster Professional Moonwatch Sapphire Sandwich is a highly sought-after watch featuring a sapphire crystal configuration, display caseback, and classic Moonwatch design.

Condition: Mint condition with hairline scratches on clasp and around the case
Band type: Original bracelet, nylon strap

Posted at

Apr 22, 2026, 1:38 AM

Active

View listing on r/WatchExchange

2021 Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 Full set Excellent condition

Omega - 310.30.42.50.01.002 · $6,400

The Omega Speedmaster Professional Moonwatch is a historic watch that has been in high demand since the Artemis missions. It comes with its full set, including papers and cards.

Condition: Excellent condition
Papers: Full set of documents and booklets, including the legendary moonwatch booklet

Posted at

Apr 22, 2026, 12:13 AM

Active

View listing on r/WatchExchange

Omega Speedmaster “First Omega in Space” 39.7mm

Omega - 310.32.40.50.06.001 · $6,700

This Omega Speedmaster "First Omega in Space" is a historically significant variant that pays tribute to the first Omega ever worn in space by astronaut Wally Schirra on October 3rd, 1962. The watch features a symmetrical design with straight lugs and a black aluminium bezel with a tachymeter scale.

Condition: Excellent
Case size: 39.7mm diameter
Movement type: Manually wound
Water resistance depth: 50m

Posted at

Apr 21, 2026, 10:25 PM

Active

View listing on r/WatchExchange

1995 Omega Speedmaster Date Mark 40 White Guilloche Dial 3513.33.00 | Great Condition (Serviced) | $2750

Omega - 3513.33.00 · $2,750

The Omega Speedmaster Date Mark 40 3513.33.00 is a mid-90s chronograph with a stainless steel case, black tachymeter bezel and white dial. It features the classic tri-compax layout, quickset date at 3, and is powered by the Omega Cal. 1152 based on the Valjoux 7750.

Condition: Great Condition (Serviced)
Case size: 39mm diameter
Lug width: 18mm
Thickness: 14mm

Posted at

Apr 21, 2026, 8:48 PM

Active

View listing on r/WatchExchange