Casio is proud to present the Casio Standard Collection Watch - AE-1000W-2AVDF which falls under the Standard Collection Watch range. These models are great value for money and are made with Casio's usual outstanding quality. Features: Resin Glass / Spherical Glass 100-meter water resistance Resin Band LED light Selectable illumination duration, afterglow Multi Time (4 different cities) World time 31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping 1/100-second stopwatch Countdown timer Alarms 5 independent alarms (one-time or daily) Hourly time signal Full auto-calendar (to year 2099) 12/24-hour format Button operation tone on/off Regular timekeeping Specifications: Measuring capacity: 23:59'59.99'' Measuring modes: Elapsed time, split time, 1st-2nd place times Measuring unit: 1/10 second Input range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Digital: Hour, minute, second, pm, month, date, day Accuracy: +/-30 seconds per month Approx. battery life: 10 years on CR2025 Total weight: 40g Size of case: 48.1X43.7X13.7mm Case / bezel material: Resin