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 MK40 Schumacher Triple Date Chronogaph Day-Night( Serviced ) Price 3200$

Omega - 3520.53 · $3,200

The Omega Speedmaster MK40 Schumacher is a neo-classic Speedmaster model from the late 1990s/early 2000s, featuring a black dial with red accents and an automatic chronograph movement. It also includes a triple date and moon phase function, sapphire crystal, and original Omega bracelet.

Condition: Very good vintage condition
Case size: 39mm diameter
Movement: Cal. 1151 (based on Valjoux 7751)
Bracelet: Original Omega bracelet

Posted at

May 10, 2026, 12:16 PM

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Omega Speedmaster Mark III 176.002 Blue Dial Orange Chrono Hand Mens Watch $2600

Omega - III 176.002 · $2,600

This Omega Speedmaster Mark III features a blue dial and orange chronograph hand, housed in a stainless steel case measuring 41mm in diameter.

Condition: Preowned, with some wear and marks
Model: Speedmaster Mark III
Movement: Automatic
Case material: Stainless steel

Posted at

May 10, 2026, 11:44 AM

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Omega Speedmaster 3519.50.00 “Schumacher World Champion 2001” LE — Carbon Racing Dial — $2600 Shipped (Tariff Covered)

Omega - 3519.50.00 · $2,600

A Limited Edition Omega Speedmaster ref. 3519.50.00 “Schumacher World Champion 2001” featuring a carbon-style racing dial and bold lume plots, powered by an automatic chronograph movement.

Condition: Honest condition with light signs of use
Case size: 39mm
Lug-to-lug: 44mm
Thickness: 14mm

Posted at

May 10, 2026, 10:24 AM

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Omega Speedmaster 3539.50 Reduced Speedmaster Sapphire Automatic Cards + Box $3,500

Omega - 3539.50 · $3,500

This Omega Speedmaster Reduced Sapphire is an undated model with a reference number of 3539.50. It has been recently serviced and features good timegrapher numbers.

Condition: Excellent, recently polished
Bracelet size fits wrists: 19.5cm
Service history: Recently serviced by watchmaker

Posted at

May 10, 2026, 2:41 AM

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Omega Speedmaster Triple Date 3523.80 – Blue Dial – Automatic Triple Calendar Chronograph ( Serviced ) Price 2200$

Omega - 3523.80 · $2,200

The Omega Speedmaster Triple Date features a metallic blue dial, a three-day calendar layout, and a moon phase display, combining sporty style with elegant design.

Condition: Excellent vintage condition with minor signs of wear befitting its age
Case size: 39mm diameter
Movement: Omega Cal. 1151 Automatic Chronograph
Functions: Chronograph, Date, Month, Moon Phase

Posted at

May 10, 2026, 2:11 AM

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