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] 1967 Omega 1039 Flat Link Bracelet for 321 Speedmaster - $1850

1967 Omega 1039 Flat Link Bracelet for 321 Speedmaster - $1850

Omega - 1039 · $1,850
A highly collectible vintage Omega Ref. 1039 flat link stainless steel bracelet from the fourth quarter of 1967, specifically designed to work with Caliber 321 Speedmaster models.

  • Condition: Good, with normal surface wear and slight stretch
  • Provenance: Sourced directly from a Speedmaster Ref. 105.012-66 CB
  • Material: Stainless Steel ('STEELINOX')
  • End Links: 516 (Correct for 20mm Speedmaster lugs)
Posted at
Mar 29, 2026, 3:36 PM
Active
[WTS] Omega Speedmaster 310.30.40.50.06.001 First Omega in Space 39.7mm, Dec 2025

Omega Speedmaster 310.30.40.50.06.001 First Omega in Space 39.7mm, Dec 2025

A tribute to the first Omega worn in space, this modern Speedmaster has a smaller 39.7mm size, grey/blue dial, and updated mesh bracelet.

  • Condition: like new
  • Case size: 39.7mm diameter
  • Box and papers included: yes
Posted at
Mar 29, 2026, 10:58 AM
Active
[WTS] Omega 3511.80.00 Speedmaster Automatic Blue Dial — Full Set (Box/Card/Instructions) — $2,200 Shipped (Tariff Covered)

Omega 3511.80.00 Speedmaster Automatic Blue Dial — Full Set (Box/Card/Instructions) — $2,200 Shipped (Tariff Covered)

Omega - 3511.80.00 · $2,200
This Omega Speedmaster Automatic features a striking blue dial and is powered by the Cal. 1152 movement, providing approximately 42 hours of power reserve.

  • Condition: Good overall, with light signs of wear consistent with use
  • Case size: 39mm x 43.5mm x 13.5mm
  • Lug width: 18mm
  • Movement: Omega Cal. 1152 (Valjoux 7750)
Posted at
Mar 29, 2026, 9:14 AM
Active
[WTS] Omega Speedmaster Reverse Panda. Full Set. 310.30.42.50.01.004

Omega Speedmaster Reverse Panda. Full Set. 310.30.42.50.01.004

Omega - 310.30.42.50.01.004 · $10,250
This Omega Speedmaster Reverse Panda is a stunning watch that looks amazing on the wrist, even in different lighting conditions.

  • Condition: Excellent (minor handling marks)
  • Clasp condition: Minor handling marks
  • Includes: Full set and receipt from AD
Posted at
Mar 28, 2026, 8:32 PM
Active
[WTS] Omega Speedmaster X-33. Titanium. $1100 only !!

Omega Speedmaster X-33. Titanium. $1100 only !!

Omega - X-33 · $1,100
This listing is for an Omega Speedmaster X-33 in titanium. The watch has a digital display and the seconds hand works fine.

  • Condition: Used, minor issue with minute and hour hand stuck
  • Material: titanium
  • Stuck Hand Fix: possible small fix needed
Posted at
Mar 28, 2026, 7:44 PM
Active
[WTS] 20mm Omega Black - Integrated Speedmaster Rubber Strap $250 Shipped

20mm Omega Black - Integrated Speedmaster Rubber Strap $250 Shipped

Omega - Z017245 · $250
This is the OEM strap and the best fit and comfort for the Speedmaster professional, in my opinion.

  • Length: 20mm x 16mm
Posted at
Mar 28, 2026, 4:28 PM
Active
[WTS] Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit

Omega Speedmaster Professional Sapphire - 310.30.42.50.01.002 - Full Kit

A lightly pre-owned Omega Speedmaster Professional with a sapphire crystal front and display caseback, featuring the stunning omega movement.

  • Condition: Near like-new condition
  • Case Size: 42mm
  • Crystal Type: Sapphire
Posted at
Mar 28, 2026, 2:17 PM
Active
[WTS] Omega Speedmaster 323.10.40.40.04.001 Specialities 2012 Olympic Games Collection Blue Red Hands | Good Condition | Serviced| 2200$

Omega Speedmaster 323.10.40.40.04.001 Specialities 2012 Olympic Games Collection Blue Red Hands | Good Condition | Serviced| 2200$

The Omega Speedmaster 323.10.40.40.04.001 Specialities 2012 Olympic Games Collection features a white dial with red and blue hands, making it an eye-catching piece.

  • Condition: Good Condition
  • Case size: 39mm
  • Crystal type: Sapphire
  • Lug width: 20mm
Posted at
Mar 28, 2026, 11:17 AM
Active
[WTS] Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

Omega Speedmaster Grey Side Of The Moon - GSOTM - Grey Dial - 44mm - 311.93.44.51.99.001

This Omega Speedmaster features a grey dial and measures 44mm in diameter.

  • Condition: Great condition, minor damage on edge of case back
  • Case size: 44mm
  • Diameter: 44mm
Posted at
Mar 28, 2026, 9:09 AM
Active