Indulge Your Love Of All Things Vintage With A Monochromatic Take On A Time-Honored Casio Watch. PayingHomage To The F-100, The First Casio Watch Designed With A Resin Case, The A-100 Line Commemorates The IconicFour Front Buttons, Adding Vintage-Style Metallic Components For An Updated Reboot Of A True Classic. Retro InStyle But Packed With Contemporary Functionality, This Timepiece Boasts A Stopwatch, Calendar, Water ResistanceFor Daily Use, And Of Course An Led Light For An Easy Read In Any Lighting.