Omega Speedmaster Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Silver / Strap

Reference 3875.30.31

Omega Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Silver / Strap

About this watch

The Omega Speedmaster Professional Moonphase Broad Arrow (model 3875.30.31) is a luxury watch that embodies precision, quality, and timeless design. This piece of history is part of the legendary 'Moonwatch' series, which was first worn on the moon during the Apollo missions. The 3875.30.31 model features the Omega caliber 1866 movement, a handwound chronograph movement that showcases exceptional engineering and precision. The watch's combination of white gold and stainless steel gives it a luxurious yet durable feel, while its sapphire glass provides scratch resistance for daily wearers. With a diameter of 42 mm and a lug width of 20 mm, this watch sits comfortably on the wrist, offering a classic look that complements both formal and casual attire. One of the standout features is its moonphase display at the 12 o'clock position, serving as a functional complication that appeals to enthusiasts who appreciate celestial aspects of watchmaking. The chronograph function allows for precise timing, making it practical and fun to use. The Omega Speedmaster Professional Moonphase is water-resistant up to 50 meters, suitable for everyday activities but not recommended for swimming or diving. This model comes with a sturdy strap that ensures a secure fit on the wrist, complementing its overall aesthetic and offering adjustability for different wrist sizes. At a reasonable weight, the 3875.30.31 feels substantial without being cumbersome, striking a perfect balance suitable for both all-day wear and special occasions.

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Key Features

Handwound chronograph movement (Caliber 1866)
Moonphase display at 12 o'clock position
Tachymeter bezel
Sapphire glass
Water-resistant up to 50 meters
Sturdy strap with adjustability
Reasonable weight and balance

Specifications

Brand

Omega

Family

Speedmaster

Model

Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Silver / Strap

Reference

3875.30.31

Movement

1866

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph
Moonphase

Case

42mm

Dial Color

Silver

Crystal

Sapphire

Water Resistance

Current Listings

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Omega - 311.32.40.30.01.001 · $4,600

This Omega Speedmaster First Omega in Space has been modified to resemble the Ed White Speedmaster and comes with all original parts for easy conversion. It's a numbered edition from 2020, featuring a genuine Omega 321 handset, Broad Arrow dial, and spiral winder sapphire case back.

Condition: Very good condition, with minimal signs of wear.
Handset type: Genuine Omega 321
Dial type: Genuine Omega 'Broad Arrow'
Case back material: Sapphire

Posted at

Nov 30, 2025, 2:25 PM

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Forstner Model O for Omega Speedmaster Professional- $100 Shipped

· $100

A 20mm Forstner Model O bracelet is available for the Omega Speedmaster. It features excellent build quality and a great taper from 20 mm to 16 mm at the clasp, with a spring-link providing comfortable wrist expansion.

Compatible models: 1861 and earlier
Dimensions: 20mm diameter (clasp 16mm)
Taper: from 20 mm to 16 mm at the clasp

Posted at

Nov 30, 2025, 2:04 PM

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2014 Omega Speedmaster 57 w/Cards (no box)

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A 2014 Omega Speedmaster 57 with a 41.5mm automatic movement and column wheel vertical clutch.

Movement: caliber 9300
Strap type: NATO

Posted at

Nov 30, 2025, 12:38 PM

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Omega Speedmaster. 39mm. Automatic.

Omega - Speedmaster · $1,575

A 39mm automatic Omega Speedmaster with strong lume, being sold by the seller.

Case Size: 39mm diameter
Movement Type: Automatic

Posted at

Nov 30, 2025, 12:20 PM

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Omega Moon Landing 50th Anniversary – Apollo Astronaut Gold Figure USB + Speedmaster Pin (Netherlands)

Omega · $2,500

The Omega Moon Landing 50th Anniversary collection includes a rare astronaut gold figure USB and a Speedmaster pin, given out during Omega's promotions for the anniversary.

Condition: Excellent condition
Country of origin: Netherlands
Eu/international shipping: true

Posted at

Nov 30, 2025, 11:03 AM

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Omega Speedmaster Pin Set – 50th Anniversary – Complete Set – Amsterdam (NL)

Posted at

Nov 30, 2025, 9:08 AM

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Omega Speedmaster. Moonwatch. Sapphire Sandwich. Mitsukoshi Dial

Omega - Speedmaster Professional (Moonwatch) · $7,850

A vintage Omega Speedmaster Moonwatch featuring a sapphire sandwich case and unique Mitsukoshi dial, accompanied by its full kit and additional OEM parts.

Dial type: Mitsukoshi
Shipping method: Fedex with insurance

Posted at

Nov 30, 2025, 7:55 AM

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2022 Omega Speedmaster Moonwatch Sapphire 42mm 310.30.42.50.01.002 Mint Complete

Omega - 310.30.42.50.01.002 · $6,195

This 2022 Omega Speedmaster Moonwatch Sapphire 42mm is a first watch worn on the moon, featuring photos and a video on the seller's website.

Condition: Minty fresh
Case size: 42mm
Year: 2022
Contents: watch,inner & outer boxes,warranty card,pictogram,master chronometer,instruction booklet,black travel case,hang tag,cleaning cloth,Moonwatch Booklet

Posted at

Apr 7, 2025, 2:59 PM

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Omega Speedmaster Chronograph - Blue - Stainless Steel - 38mm - Mint

Omega - 324.30.38.50.03.002 · $3,695

This Omega Speedmaster Chronograph features a 38mm stainless steel case, blue dial, and automatic movement.

Condition: Pre-Owned - Mint
Case size: 38mm diameter
Bracelet type: Stainless Steel
Dial color: Blue

Posted at

Apr 5, 2025, 6:13 PM

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