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 Moonwatch 3861 Hesalite Bracelet 310.30.42.50.01.001 2021 $4,650

Omega Speedmaster Moonwatch 3861 Hesalite Bracelet 310.30.42.50.01.001 2021 $4,650

Omega - 310.30.42.50.01.001 · $4,650
This Omega Speedmaster Moonwatch is a 2022 model, featuring a Hesalite crystal and coming with its original bracelet. It has been very lightly used and shows some minor scratches on the case.

  • Condition: Very lightly used with some light scratches on the case
  • Year: 2022
  • Bracelet condition: mint
  • Case material: Hesalite
Posted at
May 2, 2025, 4:37 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Broad Arrow 1957 321.10.42.50.01.001 - Automatic Co-Axial 3313

Omega Speedmaster Broad Arrow 1957 321.10.42.50.01.001 - Automatic Co-Axial 3313

Omega - 321.10.42.50.01.001 · $3,799
This Omega Speedmaster Broad Arrow features a 42mm case with a broad arrow handset and red '1957' marking, housing the Omega Caliber 3313C movement with tri-level co-axial escapement. It has a date quickset at 6 o'clock and comes with box and papers.

  • Case size: 42mm
  • Water resistance: 100m
  • Movement: Omega Caliber 3313C (based on Frederic Piguet 1285)
Posted at
May 1, 2025, 8:57 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Date 3513.50

Omega Speedmaster Date 3513.50

Omega - 3513.50 · $1,800
A beautiful Omega Speedmaster Date in overall very good condition, with a black dial and comfortable bracelet.

  • Condition: Very good condition with normal wear on the case and bracelet
  • Movement: Cal 1152
  • Bracelet size: 6.75 inches
Posted at
May 1, 2025, 8:30 PM
Active
View listing on r/WatchExchange

Omega Speedmaster Mark II / Mark 2 145.014 Vintage

Omega - 145.014 · $2,975.003
The Omega Speedmaster Mark II / Mark 2 ref. 145.014 from 1970 appears to be in excellent shape, with a strong movement and functioning chronograph.

  • Condition: all original condition with hairline scratches and original brushing
  • Bracelet size: 1158 bracelet sized to 6.9in wrist
  • Movement running status: running strong on timing machine
  • Service history: unknown
Posted at
May 1, 2025, 11:49 AM
Active
View listing on WatchUseek
Omega Speedmaster Mark II / Mark 2 145.014 Vintage

Omega Speedmaster Mark II / Mark 2 145.014 Vintage

Omega - 145.014 · $2,975.003
Early Speedmaster Mark 2 from 1970 in all original condition with no evidence of polishing or touching up. Hands and dial are in great shape with clean and consistent lume.

  • Condition: All original condition with hairline scratches on case, one gouge on bracelet.
  • Case size: 40mm diameter
  • Bracelet size: 6.9 inches
  • Bracelet type: 1158
Posted at
May 1, 2025, 11:48 AM
Active
View listing on WatchUseek
[WTS] Omega Speedmaster Dark Side of the Moon “Apollo 8” Slider

Omega Speedmaster Dark Side of the Moon “Apollo 8” Slider

Omega - 311.92.44.30.01.001 · $8,198
This Omega Speedmaster Dark Side of the Moon 'Apollo 8' is a limited edition timepiece that honors the historic Apollo 8 mission, with a laser-ablated blackened movement and skeletonized dial. The watch features a manual-winding Caliber 1869 movement and is made from ultra-light and scratch-resistant black ceramic.

  • Condition: MINT
  • Case Material: black ceramic
  • Diameter: 44.25mm
  • Movement Type: manual-winding
Posted at
May 1, 2025, 10:41 AM
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[WTS] Omega Speedmaster premoon 105.012- 66CB Serviced

Omega Speedmaster premoon 105.012- 66CB Serviced

Omega - 105.012- 66CB · $8,900
This pre-moon Speedmaster features an original dial with tritium intact and a great bezel with minimal wear. The case has sharp edges and clear polished and brushed parts.

  • Condition: Serviced, good condition with original parts and slight wear on the dial and hands
  • Movement: 321 movement
  • Caseback: Spiralwinder display caseback
Posted at
May 1, 2025, 9:11 AM
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[WTS] New 2025 Omega Speedmaster Moonwatch Professional Hesalite Black Dial Full 4/25 Ref: 310.30.42.50.01.001

New 2025 Omega Speedmaster Moonwatch Professional Hesalite Black Dial Full 4/25 Ref: 310.30.42.50.01.001

Omega - 310.30.42.50.01.001 · $5,799
This Omega Speedmaster Moonwatch Professional features a black lacquered dial and is powered by the manual-winding 3861 movement.

  • Condition: 10/10, Unworn with stickers
  • Movement: Manual wind
  • Diameter: 42mm
  • Water resistance: 50M
Posted at
May 1, 2025, 9:01 AM
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[WTS] Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

Omega Speedmaster Apollo 17 45th Anniversary (2-yr warranty) Ref: 311.30.42.30.03.001

Omega - 311.30.42.30.03.001 · $8,200
The Omega Speedmaster Apollo XVII is a limited edition timepiece commemorating the 45th anniversary of the final moon landing in 1972. This watch features a polished blue ceramic bezel with tachymeter scale, a dial with 18K yellow gold indexes and hour-minute hands coated in Super-LumiNova, and an engraved caseback.

  • Condition: Very good
  • Case size: 42mm
  • Water resistance: 50 meters / 167 feet
  • Movement: Manual-Winding Chronograph
Posted at
May 1, 2025, 8:44 AM
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View listing on r/WatchExchange