Brushed and polished stainless steel case with a brushed and polished stainless steel bracelet. Rotating inner bezel. White dial with luminous hands and index hour markers.Luminescent hands and markers. Date display at 4 o'clock. Three sub-dials displaying: 24 hous, 1/10th seconds and alarm. Eco drive - charges in sunlight or indoors movement. Scratch resistant mineral crystal. Case diameter: 48 mm. Case thickness: 12 mm. Fold-over push-button deployment clasp. Water resistant at 100 meters (330 feet). Functions: 270-day power reserve, 1/20 second chronograph, 12/24 hour time, dual time, alarm, power saver function, low charge indicator, time reset advisory. Citizen Perpetual Calendar Eco-Drive Mens Watch BL5400-52A.