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

- 2006 Omega SpeedMaster 3551.20 Chronograph Automatic Date - $3800

Omega - 3551.20 · $3,800

A 2006 Omega Speedmaster Broad Arrow 42mm stainless steel chronograph automatic date watch in excellent condition, featuring a white dial and blue hands.

Condition: Excellent shape with light wear from normal use
Case size: 42mm diameter
Bracelet length: up to 7 inches (17.8 cm)

Posted at

Dec 12, 2025, 4:48 PM

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Omega Speedmaster Racing 44mm Black/Orange perforated lthr strap on deployant clasp - 2020 complete set

Omega - 329.32.44.51.01.001 · $5,883

This Omega Speedmaster Racing features a black micro-perforated leather racing strap with orange rubber lining and an Omega folding deployant clasp, powered by the Caliber 9900 Master Chronometer movement.

Condition: like-new
Movement caliber: 9900 Master Chronometer movement - Co-Axial, anti-magnetic, column-wheel chronograph
Strap type: factory black micro-perforated leather racing strap with orange rubber lining
Case size: 44mm diameter

Posted at

Dec 12, 2025, 3:54 PM

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[WTS] Omega Speedmaster Broad Arrow Olympics Games 42mm Coaxial Automatic Chronograph + Blue Spiralwinder Ceramic Bezel + Forstner Contemporary Flat Link - Only $3200 shipped CONUS

Omega Speedmaster Broad Arrow Olympics Games 42mm Coaxial Automatic Chronograph + Blue Spiralwinder Ceramic Bezel + Forstner Contemporary Flat Link - Only $3200 shipped CONUS

Omega - Speedmaster Broad Arrow Olympics Games · $3,200

This Omega Speedmaster features a contemporary blue ceramic bezel and the Forstner flat link bracelet, with the same dimensions as the Moonwatch. It has a F. Piguet derived automatic chronograph, date display, and 4hz sweeping seconds hand.

Condition: Great condition
Case Size: 42mm
Water Resistance: 100m
Bracelet Material: OEM Forstner contemporary flat link

Posted at

Dec 12, 2025, 3:52 PM

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2019 Omega Speedmaster Professional

Omega - 311.30.42.30.01.005 · $4,999

The Omega Speedmaster Professional, also known as the Moonwatch, is a legendary chronograph powered by the hand-wound Caliber 1861. It blends space heritage with timeless style and comes in various case sizes.

Condition: Excellent Condition, 8/10 (some wear on clasp and case)
Warranty card date: 02/2019
Case size: 42mm diameter
Extra band: true

Posted at

Dec 12, 2025, 3:29 PM

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Omega Speedmaster Professional Sapphire 2025 complete - 310.30.42.50.01.002 $6500

Omega - 310.30.42.50.01.002 · $6,500

This Omega Speedmaster Professional Sapphire is a complete 2025 model, featuring a clean bezel and crystal, excellent overall shape, and includes full set accessories.

Condition: pre-owned with very light wear
Box status: inner and outer box
Papers: warranty dated 07/25/25
Links: full links

Posted at

Dec 12, 2025, 1:13 PM

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Omega Speedmaster “Ed White” Cal. 321 Tropical Dial Heavy Patina (Serviced)

Omega - 105.003-65 · $10,995

This Omega Speedmaster Ed White Ref. 105.003-65 is a highly collectible variant with a stunning brown tropical dial and rich patina. It's one of the last straight-lug Speedmasters worn by astronauts during NASA's Gemini missions and has been professionally serviced in July 2025.

Condition: very good condition
Movement service date: July 2025
Case size: 39mm diameter
Year of manufacture: 1965

Posted at

Dec 12, 2025, 12:55 PM

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Omega Speedmaster Broad Arrow 3594.50

Omega - 3594.50 · $3,250

The Omega Speedmaster Broad Arrow features a legendary hand-wound Moonwatch design, iconic black dial, and broad-arrow hands.

Condition: Pre-owned, excellent condition with minor marks on the hesalite crystal
Wrist size compatibility: 7-inch wrist

Posted at

Dec 12, 2025, 10:34 AM

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Omega Speedmaster Moonphase

Omega - 304.30.44.52.01.001 · $8,000

This Omega Speedmaster Moonphase is a new piece purchased by the original buyer in December 2023 and overhauled at an Omega service center in November 2024.

Condition: Excellent, fully overhauled
Case diameter: 44mm
Bracelet condition: Scratches (light polish needed)
Included items: box, papers, original receipt, sailcloth strap from Artem

Posted at

Dec 11, 2025, 8:15 PM

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