Chiworld 72 LED Watch/ Wrist Watch Blue Light Matrix Stainless Steel Watch Black LW2-900578-SKU201011180011 Function setting: Displays time and date , Power by CR2032 (x2) pre-installed; LED clock turns on by pressing any button, and automatically turns on momentarily every 15 minutes by itself, LED brightness can be adjusted via settings; Watch Face: Make of stainless steel; Watch Screen: 72 blue LED lights for hour and minute time display; Watch Strap: Made of stainless steel;