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.
Buy Now on Jomashop
This is an affiliate link

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 105-002-62 -factory 7912 - 6 endlinks 24 links - no stretch. Perfect dial. $20,000 super nice example.

Omega Speedmaster 105-002-62 -factory 7912 - 6 endlinks 24 links - no stretch. Perfect dial. $20,000 super nice example.

Omega - 105-002-62 · $20,000
This Omega Speedmaster is a super nice example with no stretch and a perfect dial.

  • Endlink count: 24
  • Stretch: no stretch
Posted at
Mar 2, 2026, 1:36 PM
Active
[WTS] Omega Speedmaster Professional Sapphire Sandwich (2025) – Adjustable Clasp – Near Mint – $6,800

Omega Speedmaster Professional Sapphire Sandwich (2025) – Adjustable Clasp – Near Mint – $6,800

The Omega Speedmaster Professional Sapphire Sandwich is a high-end watch with an updated adjustable clasp, offering convenient sizing without tools. The watch features a sapphire crystal and is available in the 2025 model.

  • Condition: Near mint
  • Year: 2025
  • Crystal material: Sapphire
  • Bracelet type: Omega
Posted at
Mar 2, 2026, 8:59 AM
Active
[WTS] 2026 Omega Speedmaster White Dial 310.32.42.50.04.001

2026 Omega Speedmaster White Dial 310.32.42.50.04.001

a 2026 Omega Speedmaster White Dial is being sold in this listing, but no details are provided about its condition or features.

Posted at
Mar 2, 2026, 12:53 AM
Active
[WTS] Omega Speedmaster “Silver Snoopy Award” 50th anniversary ref 310.32.42.50.02.001

Omega Speedmaster “Silver Snoopy Award” 50th anniversary ref 310.32.42.50.02.001

Omega - 310.32.42.50.02.001 · $15,850
The Omega Speedmaster 'Silver Snoopy Award' 50th anniversary watch features a white and blue combo that is highly desirable.

  • Condition: Unworn
  • Set type: Complete set
Posted at
Mar 1, 2026, 8:34 PM
Active
[WTS] Omega Speedmaster Moonwatch White Dial 2025 Full Set $8,000 [USA]

Omega Speedmaster Moonwatch White Dial 2025 Full Set $8,000 [USA]

A white Omega Speedmaster Moonwatch from the iconic company that sent the first watch to the moon, with minor marks and a full set.

  • Condition: very lightly worn with minor marks
  • Year: 2025
  • Dimensions: 42mm diameter
  • Bracelet size: 7.25"
Posted at
Mar 1, 2026, 4:05 PM
Active