EDIFICE SLIM SeriesSOLAR POWERED SLIM CHRONOGRAPH WITH SAPPHIRE CRYSTALIntroducing slim, sporty, solar-powered EFS-S590 Series chronographs. The sporty design of these multi-hand chronographs come packed in a case that is only 9.9mm thick for a comfortable fit. An inner rotary ring contributes to the sporty design of these watches. A countdown feature comes in handy for racing team members who need to keep track of a large number of time-critical events.