Casio Edifice x Standard ft. Dynamic Men Casual Formal Hexagon 100m Water Resistant Watch EFV-640L-2A EFV640L EFV640 EFV-640 EFV-640L Elevate your style with a sleek sports chronograph featuring an octagonal bezel, precise timekeeping, and robust design. Enjoy approximately 2 years of battery life, 100m water resistance, and a range of functional features, all wrapped in a stylish stainless steel case with metal band. Module / Movement 5345 (quartz) Battery Life / Accuracy Approximately 2 years (+/-20 seconds per month) Crystal Mineral crystal Luminous Luminous on hands and indexes Case / Band Material Stainless steel case with leather band Water Resistance 100m / 10 bar Case Size Thickness: 10.8 mm Diameter: 44.3 mm Length: 47.0 mm Other Specifications Casio Edifice x Standard ft. Dynamic Date display Chronograph up to 60 minutes in 1-second increment Regular timekeeping (analog display)