EF-521D-1A



EF-521D-2A



 

EF-521D-7A

    1-second stopwatch
    Measuring capacity: 29'59
Measuring mode: Elapsed time
    Accuracy: ±20 seconds per month
     
    Approx. battery life
    2 years on SR626SW
    Date display
     
    Regular timekeeping
    Analog: 3 hands (Hour, minute, stopwatch second),
3 dials (second, stopwatch minute, day)
    Size of case / total weight
   

EF-521D ...... 48.0 x 43.3 x 12.4 mm / 170 g