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 MOONWATCH 3861 WHITE DIAL 2025 WARRANTY FULL SET

Omega - 310.30.42.50.04.001 · $7,425.007

This is a new 2025 model Omega Speedmaster Professional Moonwatch with a 42mm stainless steel case and white dial, featuring a manual-winding chronograph movement with co-axial escapement.

Condition: Excellent Condition
Movement: 3861 Manual-Winding Chronograph
Case material: Stainless Steel
Diameter: 42mm

Posted at

Jun 11, 2025, 9:07 PM

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Omega Speedmaster Automatic MK40 Day Date Ref 3520.53

Omega - 3520.53 · $2,650

One of the coolest Speedmaster variants, featured in A Man and His Watch, with a tritium dial and luminova hands.

Condition: Pre-owned, with wear and dings on the bezel, insert, and case
Case size: 39mm diameter

Posted at

Jun 11, 2025, 8:36 PM

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Omega Speedmaster Professional Tokyo 2020 522.30.42.30.03.001

Omega - 522.30.42.30.03.001 · $4,900.005

This Omega Speedmaster Professional Tokyo 2020 is a high-end watch that comes with its original boxes and books, but no warranty card. It's in excellent condition.

Condition: Excellent condition
Box And Papers: includes
Warranty Card: no

Posted at

Jun 11, 2025, 7:30 PM

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Omega Speedmaster Professional Sapphire 3861

Omega - 3861 · $5,100

A Omega Speedmaster Professional Sapphire Sandwich sold on an OEM rubber strap, also including an unworn leather strap and full kit of original accessories.

Condition: Excellent preowned
Strap included: 2
Case condition: preowned

Posted at

Jun 11, 2025, 4:16 PM

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Omega Speedmaster - First Omega in Space - FOIS - 310.30.40.50.06.001 ( new )

Omega - 310.30.40.50.06.001 · $8,250.008

This Omega Speedmaster 3861 Anniversary Series is a brand new First Omega in Space (FOIS) model, reference # 310.30.40.50.06.001, featuring a stainless steel case and Omega 3861 calibre.

Condition: Brand New / Complete Set
Case Size: 39.7mm
Material: Stainless Steel
Calibre: Omega 3861

Posted at

Jun 11, 2025, 3:43 PM

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