Casio #A158WA-1/LA670WA-1 Men and Women's Classic Metal Band Alarm Chronograph Digital Watches Imported Precise Japan Quartz Movement - Accuracy: +/-20 seconds per month Stainless Steel Case and Band, Adjustable Slide Clasp Day, Date, Year, Chronograph, and Daily Alarm Functions Size of case / total weight: 37.5 x 33.5 x 9.5mm / 58g for Men's Size of case / total weight: 24.0 x 24.5 x 7.5mm / 36g for Women's