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

OEM Authentic Omega Speedmaster 20mm Bracelet - $575 shipped CONUS

Omega - 41mm Speedmaster, 20mm lug width, 1620/887 bracelet code · $575

A 41mm Omega Speedmaster in good condition, featuring a 20mm bracelet that should fit most Speedmasters with the same lug width.

Condition: Good condition with some desk dive rash
Bracelet code: 1620/887
Lug width: 20mm

Posted at

Dec 3, 2025, 7:56 PM

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- Omega SpeedMaster Professional 3570.50 Matte Black Dial - $4,450

Omega - 3570.50 · $4,450

The Omega Speedmaster Professional features a 42mm stainless steel case with a matte black dial and a black bezel insert, powered by an unknown movement.

Condition: excellent
Case size: 42mm
Bracelet length: up to 7 inches / 17.8 cm
Bracelet material: stainless steel

Posted at

Dec 3, 2025, 6:01 PM

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FINAL Price Reduction Omega Speedmaster Professional White Dial Full Set on Speedmaster '57 Flat Link Bracelet

Omega - 310.30.42.50.04.001 · $7,500

This Omega Speedmaster Professional features a white dial and is paired with a Speedmaster '57 flat link bracelet, which honors the original 1957 look.

Condition: Fairly new, beloved
Bracelet type: Speedmaster '57 flat link
Bracelet installation location: Omega Boutique at South Coast Plaza in Costa Mesa, CA
Bracelet date: 8/2025

Posted at

Dec 3, 2025, 5:16 PM

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Omega Speedmaster Racing 32630405002001

Omega - 32630405002001 · $2,900

This Omega Speedmaster Racing is in excellent working order and features a sleek design.

Condition: great condition
Shipping Methods: Zelle, PayPal, Venmo, or wire
Shipping Costs: additional $60 for insured overnight FedEx

Posted at

Dec 3, 2025, 4:10 PM

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Omega Speedmaster 310.32.42.50.01.002

Omega - 310.32.42.50.01.002 · $6,300

This Omega Speedmaster is from 2022 and runs well with everything in great shape.

Condition: Great condition
Year: 2022
Shipping cost: 60

Posted at

Dec 3, 2025, 3:52 PM

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2006 OMEGA SPEEDMASTER RACING 32630405002001

Omega - 32630405002001 · $1,900

2006 OMEGA SPEEDMASTER RACING is being sold.

Payment Methods: Zelle, Venmo, PayPal, wire transfer

Posted at

Dec 3, 2025, 3:36 PM

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Omega Speedmaster 38 Chronograph 324.30.38.50.02.001 $4,200

Omega - 324.30.38.50.02.001 · $4,200

For sale is my Omega Speedmaster 38mm chronograph in like new mint condition, complete with box and papers.

Condition: Like new, mint condition
Case Size: 38mm

Posted at

Dec 3, 2025, 2:31 PM

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2024 Omega Speedmaster - First Omega in Space - 310.30.40.50.06.001 - full kit - factory warranty - very good condition

Omega - 310.30.40.50.06.001 · $6,950

A modern tribute to the first Omega worn beyond Earth's atmosphere, featuring a Master Chronometer-certified movement and unique hand designs.

Condition: Very good
Case Diameter: 39.7mm
Movement: Master Chronometer-certified 3861

Posted at

Dec 3, 2025, 1:58 PM

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Omega Speedmaster Professional White Dial Ref: 310.32.42.50.04.001

Omega - 310.32.42.50.04.001 · $7,450

This Omega Speedmaster Professional Moonwatch features a white dial with red accents and is one of the seller's favorite takes on a classic.

Condition: New
Shipping: Free insured overnight shipping
Included items: Double boxed - inner and outer, 3 warranty cards, manual/booklet, travel case, pouch
Buyer perks: Open to trades, 3rd party escrow and authentication available, 12 month trade ins and buy backs, timegrapher testing

Posted at

Dec 3, 2025, 10:19 AM

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