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 Date (3513.30)

Omega Speedmaster Date (3513.30)

Omega - 3513.30 · $2,425
This Omega Speedmaster date features a silver dial on a steel bracelet, produced from 1998-2010.

  • Condition: excellent for its age
  • Case size: 39mm diameter
  • Case material: stainless steel
  • Bracelet material: stainless steel
Posted at
May 20, 2026, 7:04 AM
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[WTS] Omega Speedmaster Date 3211.30 40mm - $1,890

Omega Speedmaster Date 3211.30 40mm - $1,890

Omega - 3211.30 · $1,890
Up for sale is the Omega Speedmaster 3211.30 in great condition with an automatic movement, measuring 40mm in diameter. The watch has a steel bezel with some light marks/scratches/dents.

  • Condition: great condition for its age with minimal marks/hairlines
  • Case Size: 40mm diameter
  • Bracelet Length: fits up to 7-7.25 inch wrists
  • Movement: automatic Omega Calibre 1164
Posted at
May 19, 2026, 9:27 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster 5313.33

Omega Speedmaster 5313.33

Omega - 5313.33 · $2,500
For sale today is an Omega Triple Date ref. 5313.33 in great pre-owned condition with international warranty card.

  • Condition: Pre-owned, great condition with light wear throughout the case, bracelet, and clasp consistent with age
  • Water Resistance: 30m
Posted at
May 19, 2026, 5:02 PM
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[WTS] Omega Speedmaster 145.012-67 Vintage

Omega Speedmaster 145.012-67 Vintage

Omega - 145.012-67 · $7,650
A vintage Omega Speedmaster 145.012-67 in excellent condition with tritium lume and a fresh service. The dial has minor cosmetic issues but the watch keeps great time and functions properly.

  • Condition: Pre-owned, serviced
  • Lume type: Tritium
  • Bezel condition: Fresh, serviced Telemeter bezel
  • Additional bezel: Original DON bezel in rough faded shape
Posted at
May 19, 2026, 2:28 PM
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[WTS] Like New 2026 Omega Speedmaster Professional Reverse Panda 310.30.42.50.01.004

Like New 2026 Omega Speedmaster Professional Reverse Panda 310.30.42.50.01.004

Omega - 310.30.42.50.01.004
  • Water resistance: 100m
Posted at
May 19, 2026, 1:41 PM
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[WTS] Omega Speedmaster 50th Anniversary – No. 927/1957 – Limited Edition – Black Enamel Dial

Omega Speedmaster 50th Anniversary – No. 927/1957 – Limited Edition – Black Enamel Dial

Omega - 50th Anniversary Limited Edition No. 927/1957 · $9,800
A highly collectible tribute to the original 1957 Speedmaster featuring a stunning black enamel dial and produced in strictly limited numbers. This example presents very well overall, with honest handling marks consistent with careful wear.

  • Condition: Very good overall condition
  • Case size: 42mm diameter
  • Dial material: black enamel
  • Movement type: manual-wind chronograph
Posted at
May 19, 2026, 1:37 PM
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[WTS] Omega Speedmaster Professional Ref. 145.012-67 SP. Pre-Moon Full Collector's Set!

Omega Speedmaster Professional Ref. 145.012-67 SP. Pre-Moon Full Collector's Set!

Omega - 145.012-67 SP · $17,000
A Pre-Moon Omega Speedmaster Professional in its final and most desirable form, featuring the legendary Caliber 321 column-wheel movement and a full set with original papers.

  • Condition: Pre-owned, with signs of wear consistent with age
  • Movement: Caliber 321 (Serial 26.xxx.xxx)
  • Case size: 42mm diameter
  • Case manufacturer: Huguenin Frères (HF)
Posted at
May 19, 2026, 1:18 PM
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[WTS] Happy Speedy Tuesday! Price Drop – Omega Speedmaster Professional 3861 Sapphire (2022) in Excellent Condition – Full Set – Original Clasp + Micro-adjust Clasp – $6425 + shipping obo

Happy Speedy Tuesday! Price Drop – Omega Speedmaster Professional 3861 Sapphire (2022) in Excellent Condition – Full Set – Original Clasp + Micro-adjust Clasp – $6425 + shipping obo

Omega - 3861 Sapphire · $6,425
A classic Omega Speedmaster Professional Moonwatch from 2022, featuring a Co-Axial Master Chronometer movement and sapphire crystal front and back. It's in excellent condition with very light wear from normal use.

  • Condition: Excellent
  • Box: outer & inner box included
  • Warranty: 2022 warranty card included
  • Movement: Co-Axial Master Chronometer movement
Posted at
May 19, 2026, 12:41 PM
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[WTS] Happy Speedy Tuesday! Price Drop – Omega Speedmaster Reduced “Red Schumacher” 3510.61 – OG Bracelet – $2975 + shipping OBO

Happy Speedy Tuesday! Price Drop – Omega Speedmaster Reduced “Red Schumacher” 3510.61 – OG Bracelet – $2975 + shipping OBO

Omega - 3510.61 · $2,975
A unique Omega Speedmaster Reduced 'Red Schumacher' variant with a bright red dial, original bracelet, and late 90s / early 2000s styling.

  • Condition: Very nice condition for its age with normal light wear consistent with use
  • Bracelet fit: ~6.75 inch wrist depending on preferred fit
  • Bezel error: +4 to +8 s/day
  • Amplitude: 275-299
Posted at
May 19, 2026, 12:38 PM
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