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

304.63.44.52.02.001

Omega Speedmaster Moonphase Co-Axial Master Chronometer Moonphase Chronograph 44.25 mm reference 304.63.44.52.02.001 is a chronograph watch with a 44.3mm yellow gold case, 17.1mm thick, 50mm lug to lug, powered by the Omega 9905, with a 60h 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

Yellow Gold · manufacturer

Case shape

Round · manufacturer

Dial

Silver · manufacturer

Dial finish

Opaline · 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

COSC Chronometer, Master 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.