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 3570.50-$4200

Omega - 3570.50 · $4,200

A Omega Speedmaster in good condition, comes with original bracelet and forstner.

Condition: good
Seller Type: established eBay account
Additional Items: eBay authentication card, original bracelet, forstner

Posted at

Mar 7, 2026, 10:12 PM

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Omega Speedmaster Moonwatch Professional Sapphire 3861 (310.30.42.50.01.002) – 2025 Full Set – $6350

Omega - 310.30.42.50.01.002 · $6,350

This Omega Speedmaster Moonwatch Professional features the Master Chronometer Calibre 3861, a manual wind movement with 50-hour power reserve and anti-magnetic to 15,000 gauss. The watch has a 42mm stainless steel case and black stepped dial.

Condition: Excellent overall condition, light signs of wear on the bracelet and clasp
Movement: Omega Co-Axial Master Chronometer Calibre 3861 (manual wind, 50-hour power reserve, anti-magnetic to 15,000 gauss)
Case size: 42mm
Water resistance: 50m

Posted at

Mar 7, 2026, 9:44 PM

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Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega - 145.022-69 · $5,250

This Omega Speedmaster Moonwatch presents beautifully in full steel, showcasing a strong and sharp case with thick lugs that retain their original shape.

Condition: Serviced with minor polishing in the past
Diameter: 42mm
Year: 1969
Movement: 861 caliber movement

Posted at

Mar 7, 2026, 9:26 PM

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(Reserved) Omega Speedmaster Broad Arrow

Omega - Speedmaster Broad Arrow

A 2000s Omega Speedmaster broad arrow in excellent condition, running well.

Condition: pristine condition
Year of manufacture: early 2000’s

Posted at

Mar 7, 2026, 8:55 PM

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Omega Speedmaster ’57 Black Dial (2024) - excellent condition - $5750

Omega - 332.10.41.51.01.001 · $5,750

A modern interpretation of the original 1957 Speedmaster with a black dial, Broad Arrow hands, and a slimmer case. The watch features a manual wind Co-Axial Master Chronometer movement and has a water resistance of 50m.

Condition: excellent
Case Size: 40.5mm diameter
Thickness: ~12.99 mm
Movement Type: manual wind, Co-Axial Master Chronometer

Posted at

Mar 7, 2026, 6:00 PM

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Omega Speedmaster Moonphase Chrono 18k Sedna Gold & Steel 304.23.44.52.13001 B&P

Omega - 304.23.44.52.13001 · $10,195

This Omega Speedmaster Moonphase Chrono features a brown sun-brushed dial with diamond polished indexes and hands, accurate moonphase indication, and Ceragold tachymeter scale.

Movement: Meta certified Co-Axial Master Chronometer 9904
Case material: Stainless steel-18K Sedna gold
Diameter: 44.25 mm

Posted at

Mar 7, 2026, 4:19 PM

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Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina Original Step Tritium Dial (Unpolished)

Omega - 145.022-69 · $5,235

This Omega Speedmaster Professional Moonwatch is a strong example of the highly regarded reference 145.022-69, featuring a razor-sharp case and crisp edges with excellent overall definition.

Condition: Unpolished, original condition
Size: 42mm
Year: 1969
Bezel condition: Signs of age and light fading

Posted at

Mar 7, 2026, 2:44 PM

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