Double movement - Original Japan Seiko AL21E4 quartz movement and LCD 6 digits movement, guarantees precise and punctual time Week and date display - Month, day and week are displayed, just like a live calendar on your wrist Alarm, hourly chime and chronograph functions - Alarm: With snooze function. It will sound five minutes later, a good assistant to office workers and help you to have a reassuring unprotected sleep - Chronograph: 0.01 second to 23 hours, 59 minutes, 59.99 seconds, with split function 12 / 24 hours system - 12 / 24 hours format for you to chose, satisfy your different preferences 30m water resistant - Convenient for your daily life, you can wear it to do daily washing and don't need to worry about the rainwater splash EL backlight - With green EL backlight, you can see time clearly even in the dark place Exquisite workmanship - High abrasion resistant mineral glass mirror + environmental IP vacuum electroplating case + classic alloy bezel + durable stainless steel back cover and watchband