Omega Speedmaster Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Silver / Strap

Reference 3875.30.31

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

2023 Omega Speedmaster Moonwatch Pro 42mm Yellow Gold Green Dial

2023 Omega Speedmaster Moonwatch Pro 42mm Yellow Gold Green Dial

Omega - 310.60.42.50.10.001 · $27,000
This is a 2023 Omega Speedmaster Moonwatch Pro in yellow gold with a green dial, featuring a 42mm case size and Master Chronometer certification.

  • Condition: Excellent
  • Warranty Years: 5
  • Case Size: 42mm
Posted at
Feb 4, 2025, 11:46 AM
Active
[WTS] Omega Speedmaster Moonphase 42mm 3575.20 (2001 Box and Papers)

Omega Speedmaster Moonphase 42mm 3575.20 (2001 Box and Papers)

Omega - 3575.20 · $4,750
A pre-owned Omega Speedmaster Moonphase with a 42mm case size, featuring a moon phase display. The watch is in great condition, but shows some signs of wear.

  • Condition: Pre-owned, slight wear on bracelet and clasp, marks on bezel
  • Case Size: 42mm
  • Bracelet Links: 16.5 links
  • Service History: Unknown ( -5 s/d, 230+ AMP)
Posted at
Feb 4, 2025, 11:23 AM
Active
[WTS] Omega Speedmaster Hesalite 42mm 3572.50 (Watch and Card)

Omega Speedmaster Hesalite 42mm 3572.50 (Watch and Card)

Omega - 3572.50 · $4,050
A 42mm Omega Speedmaster Hesalite is being listed in great pre-owned condition, featuring a micro-scratched hesalite crystal and some nicks by the tachymeter. The watch includes 15.5 links and a warranty card.

  • Condition: Pre-owned, with minor scratches and nicks on the hesalite crystal
  • Service history: Unknown
  • Water resistance: +13 s/d (not specified)
  • Movement amp hours: >280
Posted at
Feb 4, 2025, 11:18 AM
Active
2024 Omega Speedmaster Moonwatch Hesalite 42mm 31.30.42.50.01.001 BOXES/PAPERS!

2024 Omega Speedmaster Moonwatch Hesalite 42mm 31.30.42.50.01.001 BOXES/PAPERS!

Omega - 124200 · $5,000
This 2024 Omega Speedmaster Moonwatch comes in a 42mm stainless steel case with a black dial and fixed stainless steel bezel. It features automatic movement, sapphire crystal, and water resistance up to 100 meters.

  • Condition: Pre-owned with typical cosmetic wear
  • Case diameter: 42mm
  • Band material: Stainless Steel
  • Water resistance depth rating: 100m
Posted at
Feb 3, 2025, 5:37 PM
Active
Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( new )

Omega Speedmaster Moonwatch 3861 - White - 310.30.42.50.04.001 ( new )

This is a brand new Omega Speedmaster Moonwatch Professional with a white dial and sapphire crystal on a stainless steel bracelet.

  • Condition: Brand new
  • Movement: Omega Master Chronometer Movement
  • Case size: 42mm
  • Material: Stainless Steel
Posted at
Feb 3, 2025, 3:21 PM
Active
Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)

Omega Speedmaster Moonwatch Sapphire - 3861 - 310.30.42.50.01.002 (new / 2025)

This is a brand new Omega Speedmaster Moonwatch Professional, featuring a 42mm stainless steel case and an Omega Master Chronometer movement.

  • Condition: Brand new
  • Case material: stainless steel
  • Movement type: Omega Master Chronometer
Posted at
Feb 3, 2025, 3:20 PM
Active
2023 Omega Speedmaster Pro Moonwatch 42mm 310.30.42.50.01.002 Steel Black Dial

2023 Omega Speedmaster Pro Moonwatch 42mm 310.30.42.50.01.002 Steel Black Dial

This is a 2023 Omega Speedmaster Professional Moonwatch with a stainless steel case and black dial, measuring 8.0inch in diameter on the wrist.

  • Condition: Excellent
  • Material: Stainless Steel
  • Size: 40mm diameter
  • Warranty: International Warranty card dated 2023 and Existing Factory warranty
Posted at
Feb 3, 2025, 12:56 PM
Active
Omega Speedmaster. First Omega In Space. New model! 2024yr! 310.30.40.50.06.001

Omega Speedmaster. First Omega In Space. New model! 2024yr! 310.30.40.50.06.001

This Omega Speedmaster First Omega In Space is an updated tribute to the pioneering timepiece worn in space on October 3rd, 1962, and captures the same 2nd generation Speedmaster style in modern form.

  • Condition: Like New
  • Movement type: Manual-Winding
  • Dial color: Blue-Grey
  • Bezel material: Aluminum
Posted at
Feb 2, 2025, 10:31 PM
Active
Omega Speedmaster Racing - 44.25mm - Orange - 329.32.44.51.01.001 (excellent)

Omega Speedmaster Racing - 44.25mm - Orange - 329.32.44.51.01.001 (excellent)

This Omega Speedmaster Racing features a 44.25mm stainless steel case and a black and orange dial, with a Master Co-Axial movement.

  • Condition: Excellent
  • Case size: 44.25mm
  • Movement: Master Co-Axial 9900 Chronometer
Posted at
Feb 2, 2025, 3:43 PM
Active