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 Moonphase Master Chronometer – Blue Dial – Full Set (2023)

Omega - 304.33.44.52.03.001 · $7,150

This is a 2023 Omega Speedmaster Moonphase Master Chronometer with a blue dial, blue ceramic bezel, and complete set of accessories. It features a 44.25mm steel case, Calibre 9904 movement, sapphire crystal front and back, 60h power reserve, 100m water resistance, and moonphase display.

Condition: very good with light surface wear on case/clasp
Case size: 44.25mm
Water resistance: 100m
Crystal type: Sapphire

Posted at

Dec 17, 2025, 12:46 AM

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Omega Speedmaster Spacemaster Z-33 (only full kit on titanium bracelet for sale in the world!) $4500

Omega - Spacemaster Z-33 · $4,500

The Omega Speedmaster Spacemaster Z-33 is a multifunction quartz watch inspired by the 'Pilot line' with features such as an alarm, chronograph, perpetual calendar, and two-time zone function.

Condition: Overall normal for age with scratches on titanium bracelet and minor blemishes on box
Water resistance depth: 30 meters
Case size: 43mm diameter

Posted at

Dec 16, 2025, 11:15 PM

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2021 Omega Speedmaster Professional Sapphire Sandwich

Omega - 310.30.42.50.01.002 · $6,100

A 2021 Omega Speedmaster Professional 'Sapphire Sandwich' in excellent condition, featuring a 42mm steel case with a sapphire back and manual winding movement.

Condition: Pre-owned, cosmetic condition: 8/10
Movement: OMG Calibre 3861 (manual winding)
Power reserve: approximately 50 hours
Case material: Steel front, sapphire back

Posted at

Dec 16, 2025, 11:13 PM

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🔥🔥 Omega Speedmaster Professional “Moonwatch”🔥🔥 Priced to sell!!

Omega - 3570.5 · $3,500

This Omega Speedmaster Professional “Moonwatch” is one of the seller's favorite watches, featuring a 42mm case and reference number 3570.5.

Condition: Minimal wear throughout, may contain marks on crystal under heavy magnification
Case size: 42mm diameter

Posted at

Dec 16, 2025, 9:53 PM

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2014 Omega Speedmaster 57

Omega - Speedmaster 57 · $3,950

This Omega Speedmaster 57 features a 41.5mm automatic movement, caliber 9300.

Movement: caliber 9300 (column wheel vertical clutch)
Case size: 41.5mm

Posted at

Dec 16, 2025, 9:35 PM

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Lowered Price: Omega Speedmaster Moonwatch Moonshine Gold with Green Dial

Omega - 310.60.42.50.10.001 · $30,000

The Omega Speedmaster Moonwatch Moonshine Gold features a 42mm case in Moonshine gold with a green dial and is powered by the hand-wound Master Chronometer caliber 3861. It includes a sapphire crystal front and caseback, chronograph function, and Sedna gold bracelet.

Condition: Excellent, barely worn
Bracelet material: Sedna gold
Bracelet style: Folding clasp
Movement: Hand-wound Master Chronometer Caliber 3861

Posted at

Dec 16, 2025, 7:44 PM

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OMEGA Speedmaster Moonwatch Professional White Dial Stainless Steel Watch 42mm - 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $6,975

This Omega Speedmaster Moonwatch Professional features a white dial and is powered by the manual wind Caliber 3861 movement.

Condition: good condition, shows some signs of wear
Movement: Caliber 3861 (manual wind)
Case size: 42mm diameter
Crystal: sapphire

Posted at

Dec 16, 2025, 6:17 PM

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Omega Speedmaster Triple Date

Omega - Speedmaster Triple Date · $2,450

This Omega Speedmaster Triple Date is a complete timepiece with some minor missing items. It features an additional set of links, which adds convenience for wearers.

Condition: good shape
Cards included: full set minus one card

Posted at

Dec 16, 2025, 6:04 PM

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