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

Omega Speedmaster Professional (310.30.42.50.01.002)

Omega - 310.30.42.50.01.002 · $6,800

This Omega Speedmaster Professional features a black dial, sapphire crystal on a steel bracelet and is powered by manual caliber 3861.

Condition: Excellent
Case size: 42mm
Material: Stainless Steel
Crystal type: Sapphire

Posted at

May 1, 2026, 7:28 AM

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Omega Speedmaster Professional “Reverse Panda” | 310.30.42.50.01.004 | 2026 BNIB

Omega - 310.30.42.50.01.004 · $10,500

A stunning Omega Speedmaster Professional known as the "Reverse Panda", this rare model is hard to find and comes with its full set of packaging.

Condition: Brand new in box (BNIB)
Year: 2026
Set included: full set, box, and papers

Posted at

Apr 30, 2026, 10:39 PM

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Omega Speedmaster Triple Calendar Day-Date Ref.3221.30.00 40mm | Great Condition (With Box & Serviced) | $2250

Omega - 3221.30.00 · $2,250

This Omega Speedmaster Triple Calendar Day-Date features a stainless steel case with a thickness of around 15mm and is paired with a sapphire crystal and rated to 100m water resistance. The dial includes chronograph registers, day, date, and month displays, as well as a 24-hour/GMT indication. It's powered by the Caliber 3606 movement.

Condition: Great
Water resistance: 100m
Movement power reserve: 44 hours
Bracelet size range: 18.5-19cm (7.2-7.5 inches)

Posted at

Apr 30, 2026, 10:22 PM

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Omega Speedmaster Professional Moonwatch – Ref. 310.30.42.50.01.001 – Excellent Condition – 2022

Omega - 310.30.42.50.01.001 · $5,450

The Omega Speedmaster Professional Moonwatch is a modern iteration of the legendary Moonwatch with updated movement technology and finishing while staying true to its heritage. It features an iconic Hesalite crystal and manual-wind Master Chronometer movement 3861. The watch is in excellent condition, showing only extremely light signs of wear.

Condition: excellent, minimal hairline scratches
Case size: 42mm
Movement: Cal. 3861 manual-wind Co-Axial Master Chronometer
Crystal: Hesalite

Posted at

Apr 30, 2026, 8:58 PM

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PRICE DROPPP Omega Speedmaster Chronograph Silver Dial – Ref. 324.30.38.50.02.001

Omega - 324.30.38.50.02.001 · $4,548

The Omega Speedmaster 38 offers a refined, modern take on the legendary Speedmaster design, combining classic chronograph heritage with a more versatile and wearable case size.

Case Size: 38mm
Case Material: stainless steel
Bezel: fixed tachymeter

Posted at

Apr 30, 2026, 8:54 PM

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