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 Hesalite 3861, Dated 2024

Omega - 3861

Posted at

Jan 22, 2026, 2:18 PM

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Omega Speedmaster Professional Moonwatch Tropical Brown Dial Heavy Patina Blue Insert 1969 (Box/Serviced) 🍫

Omega - 145.022-69 · $14,995

This is a rare Omega Speedmaster Moonwatch from 1969, featuring a super tropical brown dial and a blue bezel with dot-over-90. The watch has been professionally serviced and runs properly.

Size: 42mm
Year: 1969
Box: true

Posted at

Jan 22, 2026, 10:54 AM

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Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega - 145.022-69 · $5,425

This Omega Speedmaster Moonwatch presents beautifully in full steel, showcasing a strong and sharp case with thick lugs that retain their original shape. The original step dial displays a warm yellow patina across the hour markers and matching hands, creating a cohesive vintage appeal.

Condition: Serviced, excellent definition
Year: 1969
Size: 42mm diameter
Movement: 861 caliber

Posted at

Jan 22, 2026, 10:19 AM

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Omega Speedmaster 3861 Sapphire Sandwhich

Omega - 3861 · $6,100

This is a 2022 Omega Speedmaster 3861 on warranty card, sized for a 7-inch wrist. It comes with additional accessories and has shown signs of strap change wear.

Condition: Good
Warranty: Yes, on warranty card
Size adjustments: [object Object]
Accessories: New quick adjust clasp,Old clasp with micro adjustment tool,Uncle Seiko 1.5 link for dialing in fit

Posted at

Jan 22, 2026, 8:52 AM

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2023 Omega Speedmaster Calibre 321 “Ed White” 311.30.40.30.01.001 — Excellent Condition, Box & Papers

Omega - 311.30.40.30.01.001

2023 Omega Speedmaster Calibre 321 'Ed White' in excellent condition, including box and papers.

Condition: Excellent Condition

Posted at

Jan 22, 2026, 8:22 AM

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Omega Speedmaster Legend Schumacher edition ref 3506.61 MINT (box + warranty/picto/chronometer cards)

Omega - 3506.61 · $4,400

This Omega Speedmaster Legend Schumacher edition features a red dial, special collection engraved case back and is in mint condition with all original accessories.

Condition: Mint (unworn)
Bracelet size: full links
Case back: special collection engraved

Posted at

Jan 21, 2026, 11:10 PM

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Omega Speedmaster Day-Date Reduced ref 3222.80 MINT (box + warranty card)

Omega - 3222.80 · $3,400

This Omega Speedmaster Day-Date is a stunning example of the reduced model, featuring day, date, month, chronograph, and 24-hour indicators with a vibrant blue dial and stainless steel bracelet. The watch includes original box, warranty card, and operating manual.

Condition: Mint (unworn)
Day-date: includes day, date, month, chronograph, and 24-hour indicators
Box: included in sale
Warranty-card: included in sale

Posted at

Jan 21, 2026, 9:18 PM

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View listing on r/WatchExchange