Casio CASIO Collection Standard Quartz Men's Type F-91W This is a lightweight, thin digital LCD model. It is equipped with convenient functions such as date and day display, alarm, and stopwatch. It is used, but currently working. ⭐ Simple cleaning and disinfection completed Drive system: Quartz Water resistance for daily life Stopwatch (1/100 second, 60-minute counter, with split) Time alarm, hourly time signal LED light (green) Auto calendar 12/24 hour display switching Color: Dial - Green (when LED light is on), Case/Band - Black Accuracy: Average monthly difference ±30 seconds Case: Resin Glass: Resin glass Band: Resin Case size: 38.2 x 35.2mm (H x W) Thickness: 8.5mm Weight: 21g