Omega Speedmaster Racing Co-Axial Master Chronometer Chronograph 44.25 mm

329.30.44.51.04.001

Omega Speedmaster Racing Co-Axial Master Chronometer Chronograph 44.25 mm reference 329.30.44.51.04.001 is a chronograph watch with a 44.3mm stainless steel case, 14.9mm thick, 50mm lug to lug, driven by the Omega 9900, with a 60h power reserve, water resistant to 50m, in production as of November 2026.

Diameter

44.3mm · manufacturer

Thickness

14.9mm · manufacturer

Size

Large

Lug to lug

50mm · manufacturer

Water resistance

50m · manufacturer

Movement

Omega 9900 · manufacturer

Type

Chronograph · manufacturer

Case material

Stainless Steel · manufacturer

Case shape

Round · manufacturer

Dial

White · manufacturer

Dial finish

Other · 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

Steel Bracelet · 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.