Orient x Automatic ft. Contemporary aka Open Heart Men Formal Round 50m Water Resistant Watch RA-AR0009LDiscover the Orient RA-AR0009L semi skeleton open heart watch with its iconic light blue dial and a unique overlapping skeleton window. This 40.8mm stainless steel timepiece features the in-house caliber F6S22 automatic movement with hand-winding, a 40-hour power reserve, and a sapphire crystal.Caliber Number / MovementF6S22 (automatic with manual winding capacity)Power Reserve / AccuracyApproximately 40 hours (+25 to -15 seconds per day)CrystalSapphire crystalLuminousLuminous on hands and indexesCase / Band MaterialStainless steel case with stainless steel band (three-fold clasp with push-button release)Water Resistance50m / 5 barCase SizeThickness: 11.7 mmDiameter: 40.8 mmLength: 48.0 mmLug width: 22.0 mmOther SpecificationsOrient x Automatic ft. Contemporary aka Open HeartSee-through case backScrew case back24 jewelsEquipped with small second handStop second hand function (hacking mechanism)Regular timekeeping (analog display)