Seiko 5 Automatic 21 Jewels Japan Made SNKN13 SNKN13J1 SNKN13J Men's Watch COA:SIN Features: Case Bezel Material: Resin Resin Option:Glass Green Features: Case Bezel Material: Resin Resin Strap Quartz Movement Caliber: 5605 Mineral Crystal Analog Digital Display LED Light Afterglow Shock Resistant Dual Time Moon Data Tide Graph 1 100 Second Stopwatch Countdown Timer 3 Multi Function Alarms Hourly Time Signal Full Auto Calendar (To Year 2099) 12 24 Hour Display Accuracy: ±30 Seconds Per Month Day And Date Display Solid Case Back Buckle Clasp 100M Water Resistance Approximate Size Of Case: 46 Features: Case Bezel Material: Resin Resin Strap Quartz Movement Mineral Crystal Digital Display Electro Luminescent Backlight 1 100 Second Stopwatch Countdown Timer Multi Function Alarms Hourly Time signal Full Auto Calendar 12 24 Hour Format Regular Timekeeping Accuracy: ±30 Seconds Per Month Day Display Solid Case Back Buckle Clasp 200M Water Resistance Approximate Size Of Case : 53 suited to men low maintenance wear