Omega Speedmaster Moonphase Co-Axial Master Chronometer Moonphase Chronograph 44.25 mm

304.93.44.52.99.004

Omega Speedmaster Moonphase Co-Axial Master Chronometer Moonphase Chronograph 44.25 mm reference 304.93.44.52.99.004 is a chronograph watch with a 44.3mm platinum case, 17.1mm thick, 50mm lug to lug, driven by the Omega 9905, with 60h of power reserve, water resistant to 100m, in production as of November 2026.

Diameter

44.3mm · manufacturer

Thickness

17.1mm · manufacturer

Size

Large

Lug to lug

50mm · manufacturer

Water resistance

100m · manufacturer

Movement

Omega 9905 · manufacturer

Type

Chronograph · manufacturer

Case material

Platinum · manufacturer

Case shape

Round · manufacturer

Dial

Grey · manufacturer

Dial finish

Matte · manufacturer

Complications

Chronograph, Moon Phase, Date · manufacturer

Crystal

Scratch-resistant sapphire crystal with anti-reflective treatment on both sides · manufacturer

Power reserve

60h · manufacturer

Straps

Leather · manufacturer

Certifications

Master Chronometer, COSC Chronometer · manufacturer

Origin

Swiss (Heritage)

Era

Contemporary · manufacturer

Manufacturer: from the brand’s own product page. Corroborated: the same figure found on two or more independent pages. Entered by Horowell: chosen by a person at Horowell. Unverified: from another source, not yet checked.