Omega Speedmaster Moonphase Co-Axial Master Chronometer Chronograph – Ref. 304.33.44.52.03.001
 
This Omega Speedmaster Moonphase combines the iconic Speedmaster heritage with a sophisticated moonphase complication in a striking blue configuration.
The 44.25 mm stainless steel case features a blue ceramic bezel with engraved tachymeter scale in Liquid metal for enhanced durability and precision. The blue sun-brushed dial displays rhodium-plated applied indexes and hands for excellent contrast and legibility, with a date window at 9 o’clock.
At 6 o’clock, the photorealistic moon phase showcases two detailed metallic moons that accurately track the lunar cycle (approximately 29 days, 12 hours, 44 minutes), adding a poetic element tied to the Moonwatch legacy.
The exhibition caseback reveals the Co-Axial Master Chronometer Calibre 9904—an automatic chronograph movement with column wheel, free-sprung balance, 60-hour power reserve, and METAS certification for precision and magnetic resistance up to 15,000 gauss. It drives central hours/minutes, small seconds, 60-minute and 12-hour chronograph counters, plus the moonphase.
Protected by a scratch-resistant sapphire crystal (with anti-reflective treatment), the watch offers 100m water resistance and is presented on a blue leather strap with folding deployment clasp for comfort and elegance.
This example is in very good condition and comes complete with original box and papers.
Key Specifications:
•  Case: 44.25 mm stainless steel
•  Dial: Blue sun-brushed with rhodium-plated indexes
•  Bezel: Blue ceramic with Liquid metal tachymeter
•  Movement: Omega Calibre 9904 (automatic, chronograph, moonphase, Master Chronometer)
•  Power Reserve: 60 hours
•  Crystal: Sapphire
•  Water Resistance: 100 m
•  Strap: Blue leather with deployment clasp