Omega Speedmaster Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Ivory

Reference 3875.20.37

About this watch

The Omega Speedmaster Professional Moonphase Broad Arrow is a remarkable timepiece that embodies the spirit of exploration and sophistication. With its exquisite design, robust functionality, and storied history, it stands as a testament to Omega's commitment to excellence. This watch is not just about looks; its chronograph functionality allows you to measure elapsed time with precision. Whether you’re timing a race or just keeping track of your cooking, the sub-dials are intuitive and easy to read. One of the most charming features of the Speedmaster Moonphase is its moonphase display. This complication shows the current phase of the moon, which is both beautiful and practical for those who enjoy stargazing or simply want to keep track of the lunar cycle. Its blend of aesthetics, functionality, and heritage makes it a worthy addition to any collection. With a water resistance of up to 50 meters, this watch can handle splashes and brief immersion. The Omega Speedmaster Professional Moonphase Broad Arrow is more than just a watch; it's a celebration of time, heritage, and innovation.
Buy Now on Jomashop
This is an affiliate link

Key Features

  • Omega caliber 1866 hand-wound chronograph movement
  • 42mm stainless steel case with sapphire crystal
  • Ivory dial with stick and dot indexes and arrow hands
  • Tachymeter bezel for precise speed calculations
  • Water resistance up to 50 meters
  • Chronograph functionality with sub-dials
  • Moonphase display at 12 o'clock

Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Ivory
Reference
3875.20.37
Movement
1866
Movement Features
  • Hours, Minutes, Small Seconds
  • Date
  • Chronograph
  • Moonphase
Case
42mm
Dial Color
Ivory
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] 2019 Omega Speedmaster (FOIS) - 311.32.40.30.01.001 - Box and Papers - Price Reduced

2019 Omega Speedmaster (FOIS) - 311.32.40.30.01.001 - Box and Papers - Price Reduced

This is the highly sought-after “First Omega in Space” Speedmaster, featuring the classic straight-lug case and vintage-inspired design.

  • Condition: pre-owned with minimal wear
  • Case size: 39.7mm diameter
  • Edition size: Numbered Edition
Posted at
Feb 18, 2026, 11:56 AM
Active
[WTS] Omega Speedmaster MoonWatch 310.30.42.50.04.001 FULL SET 2025 - $7475

Omega Speedmaster MoonWatch 310.30.42.50.04.001 FULL SET 2025 - $7475

This Omega Speedmaster MoonWatch is a full set including box and papers, with a condition that's almost brand new.

  • Condition: Like new, worn once
  • Box and papers included: full set, brand new condition
  • Shipping options: UPS Ground with signature confirmation, expedited options available
  • Payment methods: Zelle preferred, PayPal G&S, bank wire
Posted at
Feb 18, 2026, 10:17 AM
Active
[WTS] Omega Speedmaster Professional - 310.30.42.50.04.001 - 2024 - Full Set - $7,300

Omega Speedmaster Professional - 310.30.42.50.04.001 - 2024 - Full Set - $7,300

A 2024 Omega Speedmaster Professional Moonwatch in white dial, full set and running well.

  • Condition: normal wear, clasp wear and lug wear
  • Year: 2024
  • Timekeeping: +4 s/d; Amp: 284
  • Included items: outer box/inner box,warranty card (dated 2024),manual/pictograms card,hang tag,booklet,purchase receipt,Omega book about watch
Posted at
Feb 18, 2026, 9:04 AM
Active
[WTS] Omega Speedmaster Reduced 3510.50.00

Omega Speedmaster Reduced 3510.50.00

Omega - 3510.50.00 · $2,000
For sale is a preowned Omega Speedmaster Reduced (3510.50.00) sourced from Japan in July 2019. The watch continues to run well with readings of +8 seconds per day, 267 amplitude, and 0.1ms beat error on my timegrapher.

  • Condition: Preowned, 90% condition of the watch head
  • Bracelet size fits: 6.5 inches / flat wrist
  • Spare links included: 2
  • Condition of the watch head: 90%
Posted at
Feb 18, 2026, 7:01 AM
Active
[WTS] Omega Moonwatch Speedmaster Co-Axial Chronograph 44mm 311.30.44.50.01.002 | 2022 Box and Papers

Omega Moonwatch Speedmaster Co-Axial Chronograph 44mm 311.30.44.50.01.002 | 2022 Box and Papers

This Omega Moonwatch Speedmaster Co-Axial Chronograph is a 2022 model, featuring a 44mm case and co-axial chronograph functionality.

  • Condition: Pre-Owned with wear on clasp and polished parts of case, tiny marks on crystal
  • Bracelet length: 13.5 links
  • Condition of hands: service hands with 99% positive main hands
  • Box and papers status: 2022 box and papers
Posted at
Feb 17, 2026, 11:26 PM
Active
[WTS] OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA Speedmaster "Dark Side of the Moon" Apollo 8 Ref. 311.92.44.30.01.001 + Apollo 8 Gen2 Strap + Deployant Clasp - ULTIMATE SET! 🔥$10,000🔥

OMEGA - 311.92.44.30.01.001 · $10,000
The OMEGA Speedmaster 'Dark Side of the Moon' Apollo 8 commemorates the 50th anniversary of the Apollo 8 mission, featuring a black ceramic case and a laser-ablated dial to represent the lunar surface. It's powered by the Calibre 1869 movement, decorated with blackened bridges and mainplate.

  • Condition: UNWORN
  • Case material: black ceramic
  • Diameter: 44.25mm
  • Movement: Calibre 1869
Posted at
Feb 17, 2026, 11:10 PM
Active
[WTS] OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,500🔥

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET! 🔥$16,500🔥

OMEGA - 311.30.40.30.01.001 · $16,500
A faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk. The watch features a stainless steel case with straight lugs and removal of crown guards, and is powered by the legendary Calibre 321 movement.

  • Condition: UNWORN
  • Maker: OMEGA
  • Model name: Speedmaster Calibre 321 'Ed White'
  • Case material: stainless steel
Posted at
Feb 17, 2026, 10:57 PM
Active
[WTS] Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega Speedmaster Professional Moonwatch Full Steel Yellow Patina 1978 (Serviced)

Omega - 145.022-78 · $5,050
This Omega Speedmaster Professional Moonwatch reference 145.022-78 is presented in all-original condition and remains in very good overall shape. The watch is fitted with its original, period-correct black tritium dial, displaying an even yellow patina across all hour markers that adds warmth and character.

  • Condition: Very good overall shape
  • Case dimensions: 42mm
  • Year of manufacture: 1978
Posted at
Feb 17, 2026, 7:51 PM
Active
[WTS] Omega Speedmaster Green Gold ($30,500)

Omega Speedmaster Green Gold ($30,500)

Omega - 310.60.42.50.10.001 · $30,500
This Omega Speedmaster features a 42mm case, green dial, and is in pristine condition.

  • Condition: pristine condition
  • Case size: 42mm diameter
  • Dial color: green
Posted at
Feb 17, 2026, 3:09 PM
Active