Casio Edifice x EFK-100 Series ft. Forged Carbon Men Formal Round 100m Water Resistant Watch EFK-100D-7A EFK100D EFK100 EFK-100 EFK-100D Experience the Edifice EFK-100D, a precision-engineered watch for motorsport enthusiasts. It features a striking electroformed dial that mimics forged carbon, a robust 39mm case, and a sapphire crystal. Powered by a mechanical movement with 40-hour power reserve and showcased through a transparent case back. With 100m water resistance, it blends high-performance inspiration with refined durability. Module / Movement 5755 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 40 hours (+45 to -35 seconds per day) Crystal Sapphire crystal 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: 12.5 mm Diameter: 39.0 mm Length: 43.5 mm Lug width: Integrated Other Specifications Casio Edifice x EFK-100 Series ft. Forged Carbon Magnetic resistant See-through back case Screw case back 24 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)