Casio Edifice x Solar ft. Exhilaration Driving Unisex Formal Hexagon 100m Water Resistant Watch EFS-S660D-1A EFSS660D EFSS660 EFS-S660 EFS-S660D Experience motorsport-inspired sophistication with the Casio Edifice EFS-S660 series. Its compact 38.3mm case, textured multi-layer dial, tachymeter bezel and precision chronograph create a dynamic, race-bred aesthetic, balanced by sleek metallic finishes. With sapphire crystal and solar power, this stylish sports watch delivers performance, detail and everyday versatility. Module / Movement 5334 (solar powered) Power Reserve / Accuracy Approximately 5 months when fully charged (+/-20 seconds per month) Crystal Sapphire crystal (anti-reflective coating) Luminous Luminous on hands Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with push-button release) Water Resistance 100m / 10 bar Case Size Thickness: 11.6 mm Diameter: 38.3 mm Length: 45.3 mm Lug width: Integrated Other Specifications Casio Edifice x Solar ft. Exhilaration Driving Chronograph up to 60 minutes in 1/20-second increment (elapsed time, split time) Low battery alert Date display Equipped with small second hand Regular timekeeping (analog display)