Citizen Cyber Aqualand Nx MG1010-08E. Fully automatic calendar. Alarm. 1/100th second chronograph(up to 23hours 59 minutes 59 seconds 99). Countdown Timer from 99 minutes to 1 minute (1-minute increments). 12/24 Adjustable display. World time(up to 30 cities across 48 time zones). Destination timer. Electro-Luminescence backlighting. Communicates with windows based PC. Transfer Dive Log data to PC Via infrared port or USB with communication unit(sold separatley). transfer time, Alarm, Dive Alarm and Anniversary data to another CYBER AQUaland Nx via infrared port. Disply and/or Print Dive data and Graph via infrared port or USB with communication unit(sold separatley). DIVE COMPUTER FEATURES. Full decompression Data. vDive Log memory for up to 100 dives. Depth display and memory. Alarms for ascent rate, depth alarm, maximum depth and all errors for Nitrox diving. Water temperature display and memory. Water thermometer. Calculation of no fly time and residual nitrogen in the body. Measures surface interval. Automatic altitude adjustment. Battery power indicator. Scratch resistant mineral crystal. Case measures 47mm diameter by 16mm thick. 5 Years Original Citizen's U.S. Warranty.