Omega Speedmaster Racing Co-Axial Master Chronometer Chronograph 44.25 mm

329.53.44.51.03.001

Omega Speedmaster Racing Co-Axial Master Chronometer Chronograph 44.25 mm reference 329.53.44.51.03.001 is a chronograph watch with a 44.3mm sedna gold case, 15.2mm thick, 50mm lug to lug, powered by the Omega 9901, with 60h of power reserve, water resistant to 50m, launched in 2017, in production as of November 2026.

Diameter

44.3mm · manufacturer

Thickness

15.2mm · corroborated by 2 sources

Size

Large

Lug to lug

50mm · manufacturer

Water resistance

50m · manufacturer

Movement

Omega 9901 · manufacturer

Type

Chronograph · manufacturer

Case material

Sedna Gold · manufacturer

Case shape

Round · manufacturer

Dial

Blue · manufacturer

Dial finish

Sunburst · manufacturer

Complications

Chronograph, Date, GMT / Dual Time · manufacturer

Crystal

Domed 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.