CHRONOGRAPH: 3 small dials work, top dial is 1/10 microsecond dial(1 circle = 2 seconds), bottom dial is second dial(1 circle = 1 minute), middle dial is minute dial(1 circle = 60 minutes).
WATER-RESISTANT: 3 bar waterproof, withstands rain and splashes of water, but not showering, diving, snorkeling or water-related work.
CALENDAR: Date indicator, the default time is 31 days, calendar should be adjusted at the beginning of months of which are not 31 days.