Casio General x Digital ft. Vintage Men Casual Sports Hexagon Water Resistant Watch A168XES-1B A168XES A168 A-168 A-168XES Experience precision timekeeping with a battery life of approximately 7 years and advanced features like electro-luminescent backlight, 1/100-second stopwatch, daily alarm, and auto-calendar, all wrapped in a durable resin case with water-resistant design. Module 3298 (quartz) Battery Life / Accuracy Approximately 7 years (+/-30 seconds per month) Crystal Resin glass Light Electro-luminescent backlight (blue) Case / Band Material Resin (chrome plated) case with resin band Water Resistance Water resistant Case Size Thickness: 9.7 mm Diameter: 36.3 mm Length: 39.4 mm Other Specifications Casio General x Digital ft. Vintage 1/100-second stopwatch (up to 60 minutes, elapsed time, split time) Daily alarm Hourly time signal Auto-calendar (28 days for February) 12/24-hour format Regular timekeeping (digital display)