Casio General x Digital ft. Vintage Men Casual Hexagon Water Resistant Watch A158WA-1D A158WA A158 A-158 A-158WA Experience precision timekeeping with this quartz-powered watch, boasting an impressive 7-year battery life and advanced features like a 1/100-second stopwatch, daily alarm, and auto-calendar. Its sleek resin case and metal band design make it a stylish accessory for any occasion. Module 593 (quartz) Battery Life / Accuracy Approximately 7 years (+/-30 seconds per month) Crystal Resin glass Light LED backlight (green) Case / Band Material Resin (chrome plated) case with metal band (slide clasp) Water Resistance Water resistant Case Size Thickness: 8.2 mm Diameter: 33.2 mm Length: 36.8 mm Other Specifications Casio General x Digital ft. Vintage 1/100-second stopwatch (up to 60 minutes) Daily alarm Hourly time signal Auto-calendar (set at 28 days for February) 12/24-hour format Regular timekeeping (digital display)