EDIFICE SLIM CHRONOGRAPH WITH SAPPHIRE CRYSTAL. Introducing the slim and sporty chronograph EFR-S572 Series. The sporty design of these multi-hand chronographs come packed in a case that is only 9.1 mm thick for a comfortable fit. The bezel is designed in the image of an automotive slotted brake rotor. A sapphire crystal resists scratching and looks great, too.