Omega Speedmaster Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Ivory

Reference 3875.20.37

Omega Speedmaster Professional Moonphase Broad Arrow Stainless Steel / Ivory

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

Current Listings

Omega Speedmaster Dark Side of the Moon

Omega - 311.92.44.51.01.006 · $6,600

A modern all ceramic Omega Speedmaster Dark Side of the Moon, powered by a co-axial movement, available as watch only.

Condition: very good
Size: 44mm diameter
Movement: Co-Axial Automatic

Posted at

Dec 22, 2025, 8:36 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Moonwatch Professional Sapphire 310.30.42.50.01.002 – Full Set – $6,400 Shipped

Omega - 310.30.42.50.01.002 · $6,400

A 2022 Omega Speedmaster Moonwatch Professional Sapphire, featuring a sapphire crystal and display caseback, with a manual-wind chronograph movement.

Condition: Great
Case size: 42mm diameter
Movement: Manual-wind chronograph (Omega Caliber 3861)
Crystal: Sapphire

Posted at

Dec 22, 2025, 7:27 PM

Active

View listing on r/WatchExchange

Omega Speedmaster 3590.50

Omega - Speedmaster 3590.50

A summary of the watch in the listing is not provided.

Posted at

Dec 22, 2025, 4:21 PM

Active

View listing on r/WatchExchange

Omega Speedmaster Professional Moonwatch Full Steel 145.022-69 Ghost Bezel Yellow Patina Step Dial 1969 (Serviced) 🔥

Omega - 145.022-69 · $5,425

Condition: serviced, professionally serviced in November 2022
Case size: 42mm
Movement: 861 caliber
Bracelet size: up to 7.5” (19cm)

Posted at

Dec 22, 2025, 4:08 PM

Active

View listing on r/WatchExchange

Omega Speedmaster racing 9900 44.25mm 329.30.44.51.01.001

Omega - 329.30.44.51.01.001 · $6,200

This Omega Speedmaster racing is a 44.25mm model with a factory warranty until AUG 2025, described as really clean and full set.

Condition: Mint and full set
Case Size: 44.25mm diameter

Posted at

Dec 22, 2025, 3:46 PM

Active

View listing on r/WatchExchange

OMEGA Speedmaster Calibre 321 "Ed White" Ref. 311.30.40.30.01.001 - ULTIMATE SET!

OMEGA - 311.30.40.30.01.001 · $18,000

The OMEGA Speedmaster Calibre 321 Ref. 311.30.40.30.01.001 is a faithful recreation of the reference 105.003, famously worn by astronaut Ed White during America's first spacewalk.

Condition: UNWORN
Material: stainless steel
Size: 39.7mm diameter
Caseback material: sapphire

Posted at

Dec 22, 2025, 9:11 AM

Active

View listing on r/WatchExchange

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

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, a technical and artistic tribute to space exploration. This watch features a black ceramic case, skeletonized dial, laser-ablated lunar surface, and Calibre 1869 movement with blackened bridges.

Condition: UNWORN
Case material: black ceramic
Diameter: 44.25mm
Movement: Calibre 1869

Posted at

Dec 22, 2025, 9:06 AM

Active

View listing on r/WatchExchange