Brand Casio Model No. MQ-71-2BDF Series Standard Gender Pria Case diameter 34.9 mm Case thickness 7.8 mm Water resistant Yes Case material Plastic/Resin Case back Screw case back Glass material Resin Glass/Spherical Glass Strap material Rubber/Silicon/Resin/Karet Clasp Bucklei Luminious / LumiBrite Yes Movement Quartz Weight 20g Accuracy 20 seconds per month Approx Battery Life 3 years on SR626SW Others Regular timekeeping Analog: 3 hands (hour, minute, second)