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

304.30.44.52.01.001

Omega Speedmaster Moonphase Co-Axial Master Chronometer Moonphase Chronograph 44.25 mm reference 304.30.44.52.01.001 is a chronograph watch with a 44.3mm stainless steel case, 16.9mm thick, 50mm lug to lug, driven by the Omega 9904, with 60h of power reserve, water resistant to 100m, in production as of November 2026.

Diameter

44.3mm · manufacturer

Thickness

16.9mm · manufacturer

Size

Large

Lug to lug

50mm · manufacturer

Water resistance

100m · manufacturer

Movement

Omega 9904 · manufacturer

Type

Chronograph · manufacturer

Case material

Stainless Steel · manufacturer

Case shape

Round · manufacturer

Dial

Black · manufacturer

Dial finish

Sunburst · 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

Steel Bracelet · 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.