Watch Glossary

Two gasket seals on crown and case back for improved water resistance.

Two superimposed chronograph hands allowing simultaneous timing of multiple independent events.

Two independent tourbillons rotating in opposite directions for improved chronometric performance.

Elegant timepiece designed for formal occasions, typically thin with minimalist dial and leather strap.

Lugs with holes for direct strap attachment, found on vintage military watches.

Watch with crown positioned at 3 o'clock, designed to be worn on the right wrist for left-handed operation.

Angular clearance allowing pallet fork to separate from escape wheel teeth

Two mainsprings in series, increases power reserve, common in chronograph movements like 9300

Displays two different time zones simultaneously, typically with a 24-hour hand tracking second zone.

Hybrid watch design housing analog movement beneath integrated digital sensor layer