EFRS108D-1AEDIFICE SLIM series with Sapphire Crystal. This three hand analogue model features a slim 7. 8 mm thick case that enhances fit. The watch boasts a flat octagonal bezel with a hairline finish that creates a sporty yet luxurious design. A dial with a hairline finish also creates a high quality feel. Screws at the four corners of the case, a powerful index design, and a gold second hand create a sporty finish. Uses a scratch resistant sapphire crystal.