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 Moonwatch (Reverse Panda) – Full Kit

Omega - Speedmaster Moonwatch (Reverse Panda) · $10,250

A classic Omega Speedmaster Moonwatch with an updated Co-Axial Master Chronometer movement, available as a full set including box, papers, and cards.

Condition: Amazing, slight mark on the case
Size: 40mm diameter
Movement: Cal. 3861
Power reserve: ~50 hours

Posted at

Apr 28, 2026, 1:33 AM

Active

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Omega Speedmaster Triple Calendar Blue Sunburst Dial 3523.80 39mm | Great Condition (Serviced) | $2500

Omega - 3523.80 · $2,500

The Omega Speedmaster Triple Calendar is a compact watch with a blue sunburst dial featuring a tachymeter scale and multiple complications. The stainless steel case measures approximately 44.7mm lug-to-lug and has an 18mm lug width.

Condition: Great condition, recently serviced
Case Size: 39mm diameter
Lug Width: 18mm
Lug To Lug: 44.7mm

Posted at

Apr 27, 2026, 10:20 PM

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Omega Speedmaster Pro White Dial

Omega - 310.32.42.50.04.001 · $6,999

A beautiful Omega Speedmaster Pro with a white dial is up for sale, featuring a manual wind movement and coming as a full kit with card dated 09/2025.

Condition: great condition with minimal wear on the case
Size: 42mm diameter
Movement: 3861 manual wind movement

Posted at

Apr 27, 2026, 9:28 PM

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Omega Speedmaster. Mother of pearl dial. 39mm. Automatic.

Omega · $2,100

This Omega Speedmaster features a 39mm automatic movement and a beautiful mother of pearl dial, along with gorgeous lume and an OEM omega strap.

Case Size: 39mm diameter
Movement Type: Automatic

Posted at

Apr 27, 2026, 6:33 PM

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2025 Omega Speedmaster Silver Snoopy Award Full Set

Omega - 310.32.42.50.02.001 · $15,499

The Omega Speedmaster Silver Snoopy Award 50th Anniversary is a highly sought-after model that celebrates the brand's historic relationship with NASA and commemorates the Silver Snoopy Award presented to Omega in 1970 for its contributions to the Apollo 13 mission.

Case size: 42mm
Movement: Manual Wind, Omega Caliber 3861 (Master Chronometer Certified)
Dial color: Silver with blue accents

Posted at

Apr 27, 2026, 4:08 PM

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Omega Speedmaster Moonwatch 3861 Sapphire 310.30.42.50.01.002 ( new / 2026 / box and papers )

Omega - 310.30.42.50.01.002 · $7,250

This Omega Speedmaster Moonwatch Professional Sapphire is a brand new watch with a stainless steel case and 3861 Omega Master Chronometer Movement.

Condition: Brand new
Case Size: 42mm diameter
Movement: 3861 Omega Master Chronometer

Posted at

Apr 27, 2026, 12:53 PM

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Omega Speedmaster Moonwatch 3861 Hesalite 310.30.42.50.01.001 ( new / 2026 / box and papers )

Omega - 310.30.42.50.01.001 · $6,250

A brand new Omega Speedmaster Moonwatch Professional Hesalite, complete with all boxes and papers.

Condition: Brand new
Case size: 42mm diameter
Movement type: Omega Master Chronometer Movement

Posted at

Apr 27, 2026, 12:46 PM

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Omega Speedmaster Professional Moonwatch 310.30.42.50.01.002 Full set

Omega - 310.30.42.50.01.002 · $6,200

A fully set Omega Speedmaster Professional Moonwatch in excellent condition, with a rich history and no signs of wear.

Condition: Excellent
Asking price: $6200 plus shipping

Posted at

Apr 27, 2026, 11:30 AM

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Omega Speedmaster Date 3513.30 $2,200

Omega - 3513.30 · $2,200

The Omega Speedmaster Date features a clean sunburst textured silver dial and a classic polished bezel, running on the Omega 1152 automatic chronograph movement.

Condition: Preowned - Good
Box and papers: yes, dated October 2006
Max wrist size: 7.75 inches

Posted at

Apr 27, 2026, 10:40 AM

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View listing on r/WatchExchange