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

OEM Authentic Omega Speedmaster 20mm Bracelet - $575 shipped CONUS

Omega - 41mm Speedmaster, 20mm lug width, 1620/887 bracelet code · $575

A 41mm Omega Speedmaster in good condition, featuring a 20mm bracelet that should fit most Speedmasters with the same lug width.

Condition: Good condition with some desk dive rash
Bracelet code: 1620/887
Lug width: 20mm

Posted at

Dec 3, 2025, 7:56 PM

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- Omega SpeedMaster Professional 3570.50 Matte Black Dial - $4,450

Omega - 3570.50 · $4,450

The Omega Speedmaster Professional features a 42mm stainless steel case with a matte black dial and a black bezel insert, powered by an unknown movement.

Condition: excellent
Case size: 42mm
Bracelet length: up to 7 inches / 17.8 cm
Bracelet material: stainless steel

Posted at

Dec 3, 2025, 6:01 PM

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FINAL Price Reduction Omega Speedmaster Professional White Dial Full Set on Speedmaster '57 Flat Link Bracelet

Omega - 310.30.42.50.04.001 · $7,500

This Omega Speedmaster Professional features a white dial and is paired with a Speedmaster '57 flat link bracelet, which honors the original 1957 look.

Condition: Fairly new, beloved
Bracelet type: Speedmaster '57 flat link
Bracelet installation location: Omega Boutique at South Coast Plaza in Costa Mesa, CA
Bracelet date: 8/2025

Posted at

Dec 3, 2025, 5:16 PM

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Omega Speedmaster Racing 32630405002001

Omega - 32630405002001 · $2,900

This Omega Speedmaster Racing is in excellent working order and features a sleek design.

Condition: great condition
Shipping Methods: Zelle, PayPal, Venmo, or wire
Shipping Costs: additional $60 for insured overnight FedEx

Posted at

Dec 3, 2025, 4:10 PM

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Omega Speedmaster 310.32.42.50.01.002

Omega - 310.32.42.50.01.002 · $6,300

This Omega Speedmaster is from 2022 and runs well with everything in great shape.

Condition: Great condition
Year: 2022
Shipping cost: 60

Posted at

Dec 3, 2025, 3:52 PM

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2006 OMEGA SPEEDMASTER RACING 32630405002001

Omega - 32630405002001 · $1,900

2006 OMEGA SPEEDMASTER RACING is being sold.

Payment Methods: Zelle, Venmo, PayPal, wire transfer

Posted at

Dec 3, 2025, 3:36 PM

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Omega Speedmaster 38 Chronograph 324.30.38.50.02.001 $4,200

Omega - 324.30.38.50.02.001 · $4,200

For sale is my Omega Speedmaster 38mm chronograph in like new mint condition, complete with box and papers.

Condition: Like new, mint condition
Case Size: 38mm

Posted at

Dec 3, 2025, 2:31 PM

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2024 Omega Speedmaster - First Omega in Space - 310.30.40.50.06.001 - full kit - factory warranty - very good condition

Omega - 310.30.40.50.06.001 · $6,950

A modern tribute to the first Omega worn beyond Earth's atmosphere, featuring a Master Chronometer-certified movement and unique hand designs.

Condition: Very good
Case Diameter: 39.7mm
Movement: Master Chronometer-certified 3861

Posted at

Dec 3, 2025, 1:58 PM

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Omega Speedmaster Professional White Dial Ref: 310.32.42.50.04.001

Omega - 310.32.42.50.04.001 · $7,450

This Omega Speedmaster Professional Moonwatch features a white dial with red accents and is one of the seller's favorite takes on a classic.

Condition: New
Shipping: Free insured overnight shipping
Included items: Double boxed - inner and outer, 3 warranty cards, manual/booklet, travel case, pouch
Buyer perks: Open to trades, 3rd party escrow and authentication available, 12 month trade ins and buy backs, timegrapher testing

Posted at

Dec 3, 2025, 10:19 AM

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