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
50

Current Listings

[WTS] Omega Speedmaster Apollo 17

Omega Speedmaster Apollo 17

Omega - Apollo 17 · $8,500
This is a rare Omega Speedmaster with only 1972 pieces ever made. It has no major marks, except for some scuffing on the AR.

  • Condition: good
  • Production Run: only 1972 pieces ever made
  • Wrist Fits: 7.3 inches
Posted at
May 3, 2026, 7:38 PM
Active
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[WTS] Omega Speedmaster Reduced 3510.50 — 2002 Full Set

Omega Speedmaster Reduced 3510.50 — 2002 Full Set

Omega - 3510.50
  • Condition: Full Set
Posted at
May 3, 2026, 4:59 PM
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[WTS] Omega Speedmaster Professional Moonwatch Hesalite 3861 — 2022

Omega Speedmaster Professional Moonwatch Hesalite 3861 — 2022

Omega - 3861 · $60,000
a luxury watch, Omega Speedmaster Professional Moonwatch Hesalite edition from 2022

  • Year: 2022
Posted at
May 3, 2026, 4:44 PM
Active
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[WTS] Omega Speedmaster Moonphase 2024 Complete Set Blue Ceramic Mint Condition

Omega Speedmaster Moonphase 2024 Complete Set Blue Ceramic Mint Condition

Omega - Speedmaster Moonphase 2024 · $7,915
The Omega Speedmaster Moonphase is a modern execution of the flagship model, featuring full blue ceramic construction and a stunning dial. It's lightweight, technical, and visually unique in the Speedmaster lineup. The watch feels special on the wrist.

  • Condition: Mint Condition
  • Case material: Blue Ceramic
  • Dial color: stunning
Posted at
May 3, 2026, 2:12 PM
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[WTS] Omega Speedmaster Professional Moonwatch Ref: 311.30.42.30.01.005

Omega Speedmaster Professional Moonwatch Ref: 311.30.42.30.01.005

Omega - 311.30.42.30.01.005 · $5,250
This 'Big Box' Collector's set has the classic Omega Speedmaster Professional Moonwatch with a 42mm case, Hesalite Crystal, and closed caseback.

  • Condition: Very Good
  • Case size: 42mm
  • Movement: 1861 movement
Posted at
May 3, 2026, 1:29 PM
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[WTS] Omega Speedmaster 39mm. Triple Date. Automatic..

Omega Speedmaster 39mm. Triple Date. Automatic..

Omega - Speedmaster 39mm Triple Date Automatic · $1,895
A 39mm Omega Speedmaster with triple date and automatic movement.

  • Shipping: from NJ USA
  • Additional Pictures: available on dropbox
Posted at
May 3, 2026, 9:51 AM
Active
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[WTS] Omega Speedmaster Date ref. 3212.80.00 40mm | Great Condition (with Box, Booklet, Card & Serviced) | $2800

Omega Speedmaster Date ref. 3212.80.00 40mm | Great Condition (with Box, Booklet, Card & Serviced) | $2800

Omega - 3212.80.00 · $2,860
The Omega Speedmaster Date ref. 3212.80.00 is a versatile watch that blends classic chronograph functionality with everyday wearability. It features a deep blue dial, a tri-compax layout, and a date window at 3 o'clock. The watch also has a scratch-resistant sapphire crystal and a stainless steel bracelet.

  • Condition: Great condition
  • Case size: 40mm
  • Movement: Omega Calibre 1164 (Valjoux 7750 architecture)
  • Power reserve: 44 hours
Posted at
May 2, 2026, 11:41 PM
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[WTS] IF BLADERUNNER & A SPEEDY HAD A BABY! Rare Vintage Omega Speedmaster Teutonic Ghost Gray Bead-Blasted Ref 145.0044

IF BLADERUNNER & A SPEEDY HAD A BABY! Rare Vintage Omega Speedmaster Teutonic Ghost Gray Bead-Blasted Ref 145.0044

Omega - 145.0044 · $2,795
A rare vintage Omega Speedmaster Teutonic ref 145.0044 with a unique gray dial and bead-blasted case, featuring an integrated bracelet and manual wound cal 861 movement.

  • Condition: Pre-owned, some wear and scratches
  • Dial color: Gray
  • Case size: 42MM diameter
  • Bracelet type: Original Omega integrated bracelet
Posted at
May 2, 2026, 10:58 PM
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[WTS] Omega Dark Side Of The Moon Speedmaster Ceramic "Dark Vader" 310.92.44.51.01.001

Omega Dark Side Of The Moon Speedmaster Ceramic "Dark Vader" 310.92.44.51.01.001

Omega - 310.92.44.51.01.001 · $13,650
This Omega Speedmaster Dark Side of the Moon 'Dark Vader' combines a slim manual wind case with a matte finished grained dial and striking red lacquered chrono seconds hand.

  • Condition: Excellent (mint condition)
  • Calibre: OMEGA 9908 Black Edition
  • Power reserve: 60 hours
  • Crystal type: scratch-resistant sapphire crystal with anti-reflective treatment on both sides
Posted at
May 2, 2026, 9:14 PM
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