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

[WTS] Omega Speedmaster.

Omega Speedmaster.

Omega - 324.30.38.50.01.001 $2,950
This Omega Speedmaster is a coaxial chronograph with a ref number of 324.30.38.50.01.001.

  • Condition: Recently serviced
  • Service history: recently serviced
Posted at
May 4, 2025, 3:31 PM
Active
[WTS] Omega Speedmaster. X33. Titanium. $1100 only..

Omega Speedmaster. X33. Titanium. $1100 only..

Omega - X-33 $1,100
This Omega Speedmaster X-33 is a titanium digital watch. The seconds hand works fine.

  • Condition: Good, with stuck minute and hour hand
  • Material: Titanium
  • Shipping: from NJ USA
Posted at
May 4, 2025, 3:00 PM
Active
[WTS] Meteorite Omega Speedmaster Grey Side Of The Moon 311.63.44.51.99.001 Box+Papers 2022 w/Warranty

Meteorite Omega Speedmaster Grey Side Of The Moon 311.63.44.51.99.001 Box+Papers 2022 w/Warranty

Omega - 311.63.44.51.99.001 $10,875
A Grey Side Of The Moon Omega Speedmaster featuring a meteorite dial in excellent condition.

  • Condition: Excellent (pre-owned, some signs of wear)
  • Case Size: 44mm
  • Movement: Automatic
  • Dial Material: Meteorite (Alien Rock)
Posted at
May 4, 2025, 2:36 PM
Active
[WTS] Omega Speedmaster Moonwatch Blue Side of the Moon Full Set 304.93.44.52.03.001

Omega Speedmaster Moonwatch Blue Side of the Moon Full Set 304.93.44.52.03.001

Omega - 304.93.44.52.03.001 $8,495
This is a Omega Speedmaster Moonwatch - Blue Side of the Moon, a high-end timepiece in excellent condition, running well and not in need of service.

  • Condition: Excellent condition with no signs of wear
  • Year: 2020
  • Contents: Watch, Inner & Outer Box, International Warranty Card, Pictograms Card, Master Chronometer Card, Card Holder, Operating Instructions Manual
Posted at
May 4, 2025, 11:07 AM
Active
[WTS] Omega Speedmaster 馃幇Casino Dial 馃幇, 3210.52.00, 40mm

Omega Speedmaster 馃幇Casino Dial 馃幇, 3210.52.00, 40mm

Omega - 3210.52.00 $2,525
Additional Details: Omega Speedmaster Casino Dial, 40mm case size, comes in great condition with minor wear on the bracelet.

  • Condition: preowned with minor wear mainly on the bracelet
  • Size: 40mm diameter
  • Warranty card included: yes
Posted at
May 4, 2025, 10:24 AM
Active
[WTS] Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650

Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650

Omega - 304.93.44.52.03.002 $10,650
The Omega Speedmaster Moonphase features an Aventurine Dial with a blue ceramic finish.

  • Condition: Brand New, In Box (BNIB)
  • Diameter: 44mm
Posted at
May 3, 2025, 9:43 PM
Active
[WTS] Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650

Omega Speedmaster Moonphase Aventurine Dial 03/2025 Brand New - $10,650

Omega - Moonphase $10,650
This Omega Speedmaster features an Aventurine dial and comes with a certificate of authenticity.

  • Condition: Brand new
  • Diameter: 42mm
Posted at
May 3, 2025, 9:43 PM
Active
[WTS] Uncle Seiko US1479 Bracelet For Omega Speedmaster Professional (2 Clasps Included)

Uncle Seiko US1479 Bracelet For Omega Speedmaster Professional (2 Clasps Included)

Uncle Seiko - US1479 $140
A high-quality bracelet designed for Omega Speedmaster Professional watches, featuring a full bracelet, all links, and two clasps.

  • Condition: Like new
  • Includes: bracelet, links, pressure-based clasp, button-based clasp, Uncle Seiko bag, 2 x 20mm lugs
  • Shipping: CONUS only
Posted at
May 3, 2025, 5:40 PM
Active
[WTS] Omega Speedmaster. 38mm. Gorgeous lume. Ceramic bezel.

Omega Speedmaster. 38mm. Gorgeous lume. Ceramic bezel.

Omega - Speedmaster $2,550
A 38mm Omega Speedmaster with a gorgeous lume and grey dial, featuring a ceramic bezel.

  • Case size: 38mm diameter
  • Band material: AM strap
Posted at
May 3, 2025, 4:34 PM
Active