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 Date

Omega - 3212.80 · $1,999

A beautiful blue Omega Speedy Date in good condition, featuring a Cal 1164 movement and a 40mm size.

Condition: good condition with normal wear and scratches on the aluminum bezel
Movement: Cal 1164
Bracelet size fits: 7 inches
Case and bracelet wear: normal wear

Posted at

Apr 29, 2026, 8:27 PM

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Omega Speedmaster Professional “Reverse Panda” 42mm – Ref. 310.30.42.50.01.004 BNIB 2026

Omega - 310.30.42.50.01.004 · $10,889

The Omega Speedmaster Professional “Reverse Panda” is a modern twist on the iconic chronograph, featuring a high-contrast dial and 42mm stainless steel case.

Condition: Brand New in Box
Case Size: 42mm
Movement: Omega Caliber 3861 (Manual Wind, Co-Axial Master Chronometer)
Water Resistance: 50m

Posted at

Apr 29, 2026, 8:10 PM

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Omega Speedmaster Professional 3572.50 $4250

Omega - 3572.50 · $4,250

This rare Omega Speedmaster Professional features a hesalite crystal and sapphire exhibition crystal, showcasing the 1863 movement.

Condition: Good used condition with slight scuffs and marks
Bracelet type: 1498/840
Bracelet taper: 20mm-16mm

Posted at

Apr 29, 2026, 6:16 PM

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1450 President Bracelet for Omega Speedmaster Professional 20mm - Uncle Straps / Uncle Seiko

· $80

A Presidential/Lincoln bracelet for the Omega Speedmaster Professional that can be adjusted to fit different model sizes. It includes two clasp options and is made of 316L stainless steel.

Condition: good with normal desk diving scrapes on the clasps
Lug width to buckle: 20mm to 16mm
Length: 180mm
Min length after adjusted: 120mm

Posted at

Apr 29, 2026, 5:48 PM

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Brand New Omega Speedmaster Moonwatch "Sapphire Sandwich" [ Ref. 310.30.42.50.01.002 ]

Omega - 310.30.42.50.01.002 · $7,300

This listing is for a brand new Omega Speedmaster Moonwatch Professional in the 'Sapphire Sandwich' style. It comes as a full set with various accessories.

Condition: Brand new, unworn
Case size: 42mm diameter

Posted at

Apr 29, 2026, 3:46 PM

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