BALL Watch Company RR1103

BALL Watch Company uses the caliber RR1103, a Swiss-made automatic movement based on the ETA 2824-2 or Sellita SW200-1. It operates at 28,800 vph and contains 25 or 26 jewels depending on the execution—the ETA base uses 25 jewels while the Sellita uses 26. The movement features Incabloc shock protection and is designated RR1103-C in chronometer-grade versions. It appears in the Engineer II and Fireman collections.