Casio Illuminator Digital Watch Dual Time Digital Display Lap Memory Resin Case and Strap 100m Water Resistance Resin Glass Stopwatch Countdown Timer 3 Multi-Functional Alarm Hourly Time Signal LED Light (Amber) Afterglow Full Auto-Calendar (to year 2099) Battery Life: 10 Years on CR2025 Case Size (L × W × H) 2mm × 44.5mm × 13.4mm Weight: 43g