Casio Mens A158WA-1Q Retro Digital Watch. Features: - Water Resistant - Micro Light - Daily Alarm - 1/100-second digital stopwatch - Measuring modes: Net time, split time, 1st-2nd place times - Hourly Time Signal - Auto Calendar - Accuracy: +/-30 seconds per month - Battery CR2016 - Approx. battery life: 7 years - Module 593 Specifications: - Dimensions: 37.5mm x 33.5mm x 9.5mm - Weight: 58g - Warranty: 12 Months