The Casio EFK-100D is a sleek three-hand analog watch designed for sports car and GT enthusiasts, combining sporty style with precise engineering. Its dial has a forged carbon texture, sapphire crystal for clear visibility, and raised indexes with a sharp bezel for a refined look. The mechanical movement has a 40-hour power reserve, visible through a see-through case back, and the watch is water-resistant up to 10 bar for everyday use.Basic InformationCase size : 43.5 × 39 × 12.5 mmWeight : 148 gCase and bezel material : Stainless steelBand : Stainless Steel Band, Solid Band, One-touch 3-fold ClaspConstruction : Magnetic ResistantWater resistance : 100-metre water resistanceMovement type : Winding mechanism: Automatic with manual windingExteriorGlass : Sapphire CrystalBack plate : See-through screw lock backCompatible band size : 150 to 205 mm Watch FeaturesRun time : Power reserve: Approximately 40 hoursAccuracy : Mean daily rate: -35 to +45 secondsOther featuresDate displayHacking function (seconds hand)Number of jewels: 24Vibrator 21,600 vibrations per hour
