JS-540 stopwatch
JS-5402 split memory with 1/100sec.Calendar & Clock(12/24 hour format)Daily alarm and hourly chimeSnoozeEL backlightWater-resistance structureBattery CR2032 2道记忆、1/100秒 屏幕显示(30分钟内)日历及时钟显示(12/24小时转换)定闹及整点报闹重复响闹 、防水 、防震、防滑结构EL背光CR2032锂电池Size:67 x 85x24 mm