Oceanic F.11 Freediving Computer Watch w/ USB (Black) Log and History Mode including total EDT and number of dives ever or daily, Max depth with its EDT, Longest EDT with its Max Depth, Average Max Depth, EDT, and total number of dives - either total history or by day. Digital watch functions including alternate time zone, chronograph, daily alarm, and countdown timer. Optional PC Downloadable with .25/sec second sampling rate. User settable depth activation for shallow water training. User updateable firmware - with included USB cable.