Features Sports Performance The thinnest (8mm), fully featured 100 Meter / 10 ATM watch ever, designed to never be in your way Time, Date & Chrono Day, date, chrono and countdown timer with lockout feature to ensure countdown is never disturbed Small and Sturdy 31 mm case made of PMMA, a modified thermoplastic material to resist scratches and withstand impactBright Ultra thin electroluminescent backlight Comfort Supple, custom-molded Silicone band and patented locking looper for a secure, comfy fit