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

2019 Omega Speedmaster Professional

Omega - 311.30.42.30.01.005 · $4,999

The Omega Speedmaster Professional, also known as the Moonwatch, is a legendary chronograph powered by the hand-wound Caliber 1861. It blends space heritage with timeless style and comes in various case sizes.

Condition: Excellent Condition, 8/10 (some wear on clasp and case)
Warranty card date: 02/2019
Case size: 42mm diameter
Extra band: true

Posted at

Dec 12, 2025, 3:29 PM

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Omega Speedmaster Professional Sapphire 2025 complete - 310.30.42.50.01.002 $6500

Omega - 310.30.42.50.01.002 · $6,500

This Omega Speedmaster Professional Sapphire is a complete 2025 model, featuring a clean bezel and crystal, excellent overall shape, and includes full set accessories.

Condition: pre-owned with very light wear
Box status: inner and outer box
Papers: warranty dated 07/25/25
Links: full links

Posted at

Dec 12, 2025, 1:13 PM

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Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $10,995

This Omega Speedmaster Ed White Ref. 105.003-65 is a highly collectible variant with a stunning brown tropical dial and rich patina. It's one of the last straight-lug Speedmasters worn by astronauts during NASA's Gemini missions and has been professionally serviced in July 2025.

Condition: very good condition
Movement service date: July 2025
Case size: 39mm diameter
Year of manufacture: 1965

Posted at

Dec 12, 2025, 12:55 PM

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Omega Speedmaster Broad Arrow 3594.50

Omega - 3594.50 · $3,250

The Omega Speedmaster Broad Arrow features a legendary hand-wound Moonwatch design, iconic black dial, and broad-arrow hands.

Condition: Pre-owned, excellent condition with minor marks on the hesalite crystal
Wrist size compatibility: 7-inch wrist

Posted at

Dec 12, 2025, 10:34 AM

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Omega Speedmaster Moonphase

Omega - 304.30.44.52.01.001 · $8,000

This Omega Speedmaster Moonphase is a new piece purchased by the original buyer in December 2023 and overhauled at an Omega service center in November 2024.

Condition: Excellent, fully overhauled
Case diameter: 44mm
Bracelet condition: Scratches (light polish needed)
Included items: box, papers, original receipt, sailcloth strap from Artem

Posted at

Dec 11, 2025, 8:15 PM

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