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

1972 Omega Speedmaster Mark 3 Automatic Ref. 176.002 | $2,300

Omega - 176.002 · $2,300

The Omega Speedmaster Mark 3 is an important piece of history for Omega, featuring an automatic movement and date display. The watch has a stainless steel case with a mineral crystal and measures 41 x 51.6mm in size.

Condition: Good, with some scratches on the case and aging on the dial
Case Size: 41 x 51.6mm diameter
Thickness: 16.5mm
Crystal: Mineral

Posted at

Jun 13, 2025, 11:48 AM

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[US] Omega Speedmaster Chronoscope - White Panda Dial - 43mm - 329.30.43.51.02.002 - Full Set

Omega - 329.30.43.51.02.002 · $6,050

Up for sale is an Omega Speedmaster Chronoscope - White Panda Dial - 43mm that functions perfectly mechanically, without issue.

Condition: Fantastic condition with minor hairlines
Case size: 43mm diameter

Posted at

Jun 13, 2025, 8:24 AM

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Omega Speedmaster Moonwatch Professional White Sapphire Sandwich 42mm - 310.30.42.50.04.001

Omega - 310.30.42.50.04.001 · $7,692

This Omega Speedmaster Moonwatch Professional White Sapphire Sandwich is a 42mm stainless steel watch with white sapphire sandwich dial and features the Master Chronometer certification.

Condition: MINT condition, like new
Material: Stainless Steel
Size: 42mm diameter
Included With Warranty: true

Posted at

Jun 13, 2025, 2:16 AM

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2023 Omega Speedmaster Moonwatch Professional Chrono (Sapphire)(S.S.)(REF 31030425001002)

Omega - 31030425001002 · $6,200

Material: sapphire crystal, stainless steel

Posted at

Jun 12, 2025, 10:11 PM

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omega speedmaster 145022-76 - long bracelet, perfect dial and unpolished case. Cal. 861 - no trades. $5400 shipped

Omega - 145022-76 · $5,400

A Omega Speedmaster 145022-76 with a long bracelet and unpolished case, featuring Cal. 861.

Bracelet length: long
Dial condition: perfect
Case condition: unpolished

Posted at

Jun 12, 2025, 5:56 PM

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OMEGA Speedmaster Professional Apollo 11 L.E. $4,299

Omega - 3560.50.00 · $4,299

The Omega Speedmaster Professional Moonwatch 30th anniversary Apollo XI is a limited edition of 9,999 pieces, introduced in 1999 to commemorate the 30th anniversary of the Apollo 11 mission. This watch features a special caseback with an Apollo 11 patch engraving and is powered by a hand-wound Omega cal. 1861 movement.

Condition: Excellent pre-owned condition
Lug width: 20mm
Lug-to-lug: 48.2mm
Case size: 42 mm

Posted at

Jun 12, 2025, 4:08 PM

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2024 Omega Speedmaster Moonwatch Professional 310.30.42.50.01.002 “Sapphire Sandwich”

Omega - 310.30.42.50.01.002 · $5,999

The watch being listed is a 2024 Omega Speedmaster Moonwatch Professional in the 310.30.42.50.01.002 'Sapphire Sandwich' model.

Condition: Pre-owned with slight wear
Bracelet type: non-quick adjust
Service history: unknown
Accuracy: +3 s/d (seconds/minute)

Posted at

Jun 12, 2025, 3:23 PM

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Omega FOIS Speedmaster 310.30.40.50.06.001

Posted at

Jun 12, 2025, 2:42 PM

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1997 Omega Speedmaster 'Gemini V' LE of 150 PCS (Ref. 345.0022)

Omega - 345.0022 · $7,999

This Omega Speedmaster 'Gemini V' LE watch commemorates the NASA Gemini V mission, featuring a unique design with a NASA mission patch in the 9 o'clock sub-dial.

Condition: Excellent/like new
Case Size: 42mm
Bracelet Type: Omega 1499 bracelet
Bracelet End Pieces: 842

Posted at

Jun 12, 2025, 11:13 AM

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