This G-Shock by Casio Men's GA2100NN-1A Clear Black Analog-Digital Watch by Casio features Countdown timer. Measuring unit: 1 second. Countdown range: 24 hours. Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments). 5 daily alarms Hourly time signal Style Number: GA2100NN-1A New Genuine, 100% Authentic Official Licensed Product. SKU: Test Watch. UPC 889232324975

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