Casio Edifice x EFK-100 Series ft. Forged Carbon Men Formal Round 100m Water Resistant Watch EFK-100XPB-1A EFK100XPB EFK100 EFK-100 EFK-100XPB Experience the innovative Edifice EFK-100XPB forged carbon watch, inspired by high-performance automotive engineering. This premium 40mm timepiece features a full forged carbon case and dial, mechanical movement with exhibition case back, sapphire crystal, urethane strap with deployment clasp, and 100m water resistance. Designed for motorsport enthusiasts seeking lightweight durability and sophisticated style. 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 Forged carbon / stainless steel case, forged carbon dial with resin band (three-fold clasp) Water Resistance 100m / 10 bar Case Size Thickness: 12.5 mm Diameter: 40.0 mm Length: 45.0 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)