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 Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

Omega - 311.30.42.30.03.001 · $7,600

This Omega Speedmaster Apollo XVII is a limited edition watch commemorating the 45th anniversary of the final moon landing in 1972, featuring a polished blue ceramic dial and stainless steel case.

Condition: Very good condition with slight imperfections on the dial
Case Diameter: 42mm
Water Resistance: 50m / 167ft
Movement Type: Manual-Winding Chronograph Movement

Posted at

Oct 23, 2025, 9:37 AM

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Omega Speedmaster Moonwatch Professional Moonshine Gold 42mm Complete Set 310.62.42.50.99.001

Omega - 310.62.42.50.99.001 · $23,895

This Omega Speedmaster Moonwatch Professional features a 18kt moonshine gold case with a gold and black dial, anti-magnetic co-axial escapement, and comes in its original box and papers.

Condition: Excellent condition with little to no signs of wear
Movement: Mechanical (Automatic)
Case Size: 42mm diameter
Water Resistance: 50m depth rating

Posted at

Oct 23, 2025, 8:43 AM

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Omega Speedmaster 311.93.44.51.99.001 Grey Side of the Moon 2018 Year

Omega - 311.93.44.51.99.001 · $8,000

This Omega Speedmaster Grey Side of the Moon is a 2018 model, featuring a pre-owned watch in excellent condition with minimal scratches.

Condition: Preowned, minor hairline scratches and possibly a clean crystal with marks under strong magnification
Year: 2018
Shipping method: FedEx, insured, 2-day shipping

Posted at

Oct 23, 2025, 1:25 AM

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Omega OEM Speedmaster Black Rubber Strap OEM Deployant Clasp (Reserved Post)

A black rubber strap for the Omega Speedmaster Professional with a stainless steel deployant clasp, available for sale.

Posted at

Oct 22, 2025, 9:28 PM

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Omega Speedmaster. Mother of pearl dial. 39mm. Sapphire Crystal. Auto. 🔥

Omega - Speedmaster · $2,650

A rare Omega Speedmaster with a mother of pearl dial and sapphire crystal, available for sale in excellent condition.

Diameter: 39mm
Movement: auto

Posted at

Oct 22, 2025, 8:45 PM

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2023 Omega Speedmaster Moonwatch Professional 310.32.42.50.01.001 - Full Set

Omega - 310.32.42.50.01.001 · $4,695

A beautiful example of the iconic Omega Speedmaster Moonwatch Professional from 2023, featuring a clean and sporty design.

Condition: Excellent preowned condition
Material: Hesalite
Size: 42mm diameter
Scope of delivery: Complete set, inner/outer boxes, all 3 cards, hang tag, extra strap

Posted at

Oct 22, 2025, 8:28 PM

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🔥OMEGA SPEEDMASTER MOONWATCH PROFESSIONAL SAPPHIRE SANDWICH 310.30.42.50.01.002 COMPLETE 10/2025 WITH STICKERS!!!🔥

OMEGA - 310.30.42.50.01.002 · $7,199

A brand new, unworn OMEGA Speedmaster Moonwatch Professional Sapphire Sandwich with a black dial and stainless steel case.

Condition: Brand new/unworn
Case Size: 42mm diameter
Material: Stainless Steel

Posted at

Oct 22, 2025, 8:18 PM

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Omega Speedmaster Chronograph Broad Arrow Tokyo Olympic 2020

Omega - 321.10.42.50.04.001 · $2,850

The Omega Speedmaster Chronograph Broad Arrow Tokyo Olympic 2020 features a stainless steel case with a clean white dial, bold legible arabic numerals, and broad arrow hands. The chronograph hand reveals the Olympic rings, and the watch is powered by an automatic Co-Axial calibre 3313.

Condition: Minimal wear and light polish on bracelet and clasp
Case size: 42mm diameter x 48 height
Lug width: 20mm
Wrist size recommendation: 7.8in

Posted at

Oct 22, 2025, 8:07 PM

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