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 Professional (310.30.42.50.04.001)

Omega - 310.30.42.50.04.001 · $7,600

This Omega Speedmaster Professional features a white dial on a steel bracelet, with a case size of 42mm. It is powered by the manual caliber 3861 movement and comes with boxes, booklet, and warranty card.

Condition: Excellent
Case Size: 42mm
Case Material: Stainless Steel
Bracelet Material: Stainless Steel

Posted at

Apr 18, 2026, 8:01 AM

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OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000

This OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 is a commemorative watch crafted from black ceramic, featuring a skeletonized dial and laser-ablated details to represent the lunar surface. It's powered by the Calibre 1869 movement with blackened bridges and mainplate.

Condition: UNWORN
Case size: 44.25mm diameter
Movement: Calibre 1869

Posted at

Apr 17, 2026, 10:12 PM

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2015 Omega Speedmaster Grey Side of the Moon 311.93.44.51.99.001 Full Set $7,500

Omega - 311.93.44.51.99.001 · $7,500

A modern and highly distinctive take on the Speedmaster line featuring a full grey ceramic case and matching dial.

Condition: Excellent (pre-owned, minimal wear)
Case Size: 44.25mm
Case Material: Grey ceramic
Movement: Automatic chronograph (Omega Co-Axial Calibre 9300)

Posted at

Apr 17, 2026, 9:36 PM

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Omega Speedmaster Moonwatch White Dial 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $7,800

This Omega Speedmaster Moonwatch features a white dial and is in overall mint condition.

Condition: mint condition
Accessories: full set - boxes, papers, warranty card, pictogram card, Master Chronometer card, extra links

Posted at

Apr 17, 2026, 9:19 PM

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2023 Omega Speedmaster Dark Side of The Moon Apollo 8 Black 311.92.44.30.01.001 Full Set

Omega - 311.92.44.30.01.001 · $8,500

This listing is for a 2023 Omega Speedmaster Dark Side of The Moon Apollo 8, featuring a black ceramic case and leather strap with yellow accents.

Condition: Excellent preowned condition with no signs of wear on the case, bracelet, bezel or buckle. Strap has some small spots of wear
Case material: black ceramic
Case dimensions: 44.25mm diameter
Bezel: black ceramic

Posted at

Apr 17, 2026, 8:19 PM

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Omega Speedmaster Ref. 3510.50

Omega - 3510.50

The Omega Speedmaster Ref. 3510.50 is being listed for sale.

Posted at

Apr 17, 2026, 4:26 PM

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

Omega - 105.003-65 · $9,850

This Omega Speedmaster Ed White Ref. 105.003-65 is a historically significant watch with a stunning brown tropical dial and matching tritium hands that glow under UV light. It's one of the most collectible variants among Speedmaster enthusiasts, featuring strong proportions and a well-preserved stainless steel case.

Condition: good condition
Case size: 39mm diameter
Year produced: 1965
Movement serviced: yes, in July 2025

Posted at

Apr 17, 2026, 1:06 PM

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2026 Omega Dark Side of The Moon Apollo 8 Speedmaster w/ Rocketship 310.92.44.50.01.001 $12,499

Omega - 310.92.44.50.01.001 · $12,499

This 2026 Omega Dark Side of The Moon Apollo 8 Speedmaster is a high-end timepiece featuring a black ceramic case, black dial, and sapphire crystal. It has a 50-hour power reserve and is water-resistant up to 50m.

Condition: Excellent preowned condition, 9.9/10
Case size: 44.25mm diameter
Movement: 3869 caliber movement
Power reserve: 50 hours

Posted at

Apr 17, 2026, 12:52 PM

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