Skip to content
OMEGA Speedmaster Moonphase

OMEGA Speedmaster Moonphase

AutomaticSteel

Ref. 304.33.44.52.01.001

Collection: SpeedmasterCase size: 44.25mmMovement: 9904

The Omega Speedmaster Moonphase 304.33.44.52.01.001 is a chronograph with a 44.25 mm steel case. The case is 16.85 mm thick and measures 50 mm lug to lug. A scratch-resistant sapphire crystal with anti-reflective treatment on both sides covers the black dial. Omega calibre 9904 is self-winding, holds a 60 hour power reserve and is certified as a Master Chronometer. The watch has a moon phase display, a date, small seconds and a tachymeter. It also has a display back. Omega rates the case to 100 metres. A black leather strap is fitted to the watch.

Add to my inventory

Free account required - pre-fills all specs automatically

Last updated 5 Oct 2026Suggest a correction

TECHNICAL SPECIFICATIONS

GENERAL

Gender

Men

CASE

Diameter

44.25mm

Thickness

16.85mm

Lug to Lug

50mm

Lug Width

21mm

Case Material

Steel

Water Resistance

100m

Crystal

Sapphire Crystal

Bezel Material

Yellow Gold

MOVEMENT

Movement Type

Automatic

Caliber

9904

Frequency

28,800 vph (4 Hz)

DIAL

Dial Color

Black

Numerals

Lines

BRACELET/STRAP

Bracelet/Strap

Leather

Clasp Type

Fold Clasp

Clasp Material

Steel

FEATURES & COMPLICATIONS

ChronographMoon phaseMaster ChronometerChronometerTachymeterDisplay backSmall secondsDate

More from OMEGA

Show all →

Other watches with the 9904 calibre

Show all →

FOR WATCH DEALERS

Trading the OMEGA Speedmaster Moonphase?

Clone any catalog watch into your stock, sync it to Chrono24 and eBay, and invoice it with your own tax settings.