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 OEM deployant 16mm buckle width length (fits 20mm speedmaster straps)

Omega - no reference found · $260

A stainless steel Omega OEM deployant buckle for watches with a 20mm strap width.

Condition: no condition found
Buckle width: 16mm
Compatible with straps: 20mm speedmaster straps
Retail price: $310

Posted at

Apr 29, 2026, 2:42 PM

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Omega Speedmaster Date 3513.50

Omega - 3513.50

Model name: Speedmaster Date

Posted at

Apr 29, 2026, 2:36 PM

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2026 NEW Omega Speedmaster Reverse Panda 310.30.42.50.01.004 Unworn

Omega - 310.30.42.50.01.004 · $9,900

This new Omega Speedmaster Reverse Panda is an unworn timepiece that comes with its full set, including the box and paperwork.

Condition: Like New
Year Of Manufacture: 2026
Material: Stainless Steel
Bracelet Material: Stainless Steel

Posted at

Apr 29, 2026, 2:30 PM

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Omega Speedmaster Reduced - 3510.50

Omega - 3510.50 · $2,495

A Omega Speedmaster Reduced in good pre-owned condition, featuring a 39mm case size and chronograph function that will require service.

Condition: good pre-owned condition
Size: 39mm diameter

Posted at

Apr 29, 2026, 1:01 PM

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Omega Speedmaster 3519.50.00 “Schumacher World Champion 2001” LE — Racing Dial — $2,599 Shipped (Tariff Covered)

Omega - 3519.50.00 · $2,599

This Omega Speedmaster ref. 3519.50.00 'Schumacher World Champion 2001' Limited Edition features a distinctive racing dial and is powered by an automatic chronograph movement.

Condition: Honest condition with light signs of use
Case size: 39mm
Lug-to-lug: 44mm
Thickness: 14mm

Posted at

Apr 29, 2026, 12:39 PM

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Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit - Price Reduced!

Omega - 310.30.42.50.01.002 · $6,595

This Omega Speedmaster Professional features a sapphire crystal front and display caseback, showcasing the stunning omega movement.

Condition: near like-new condition
Size: 42mm diameter
Kit contents: full kit with original double box, all 3 omega cards

Posted at

Apr 29, 2026, 12:25 PM

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Omega Speedmaster Ref.3211.30 40mm ( Serviced / Great Condition / Original Box ) 2180USD

Omega - 3211.30 · $2,180

A great take on the iconic neo-vintage Speedmaster formula, this watch offers everyday wearability with a sporty 40mm case and a clean silver dial.

Condition: Excellent condition for its age with only light wear.
Case diameter: 40mm
Lug width: 19mm
Bracelet size: 18.7cm

Posted at

Apr 29, 2026, 12:09 PM

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[WTS] Omega Speedmaster Date 40mm Ref. 3210.50 | Excellent Condition | Original Ref. 1564/975 Bracelet | Caliber 1164 Chronometer | Sapphire Crystal | All Original | $2200 (SERVICED)

Omega Speedmaster Date 40mm Ref. 3210.50 | Excellent Condition | Original Ref. 1564/975 Bracelet | Caliber 1164 Chronometer | Sapphire Crystal | All Original | $2200 (SERVICED)

Omega - 3210.50 · $2,200

The Omega Speedmaster Date Ref. 3210.50 is a modern take on the classic moonwatch, featuring a 40mm case size and a deep black dial with a balanced triple-register layout.

Condition: Excellent Condition with light, honest signs of wear
Case size: 40mm
Thickness: ~15mm
Lug width: 19mm

Posted at

Apr 29, 2026, 9:57 AM

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