Omega Speedmaster Calibre 321

311.93.42.30.99.001

Omega Speedmaster Calibre 321 reference 311.93.42.30.99.001 is a chronograph watch with a 42mm platinum case, 13.4mm thick, 47.6mm lug to lug, powered by the Omega 321, with 55h of power reserve, water resistant to 50m, introduced in 2019, in production as of November 2026.

Diameter

42mm · manufacturer

Thickness

13.4mm · manufacturer

Size

Midsize

Lug to lug

47.6mm · manufacturer

Water resistance

50m · manufacturer

Movement

Omega 321 · manufacturer

Type

Chronograph · manufacturer

Case material

Platinum · manufacturer

Case shape

Round · manufacturer

Dial

Black · manufacturer

Dial finish

Stone · manufacturer

Complications

Chronograph · manufacturer

Crystal

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

Power reserve

55h · manufacturer

Straps

Leather · manufacturer

Origin

Swiss (Heritage)

Era

Reissue / Heritage · 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.