Seiko Alarm Chronograph SNA553

Scratch resistant Hardlex crystal. 10 year battery life. Battery life indicator. Indicates month, date and number of years since last leap year. 24 hour hand can display the time in another time zone. High accuracy - yearly loss/gain rate of less than 20 seconds. Once set, the perpetual calendar automatically adjusts for odd and even months including February of leap years upto February 28, 2100. Able to determine direction utilizing 24 hour hand, rotating compass bezel ring and the position of the sun. Includes a pocket size leather-bound guide to US National Parks. A laminated conversion chart for use with maps of different scales is included. The left crown is used to trace distance on a map. Maps using the 1:62500 scale (1 inch - approx 1 mile, used by many USGS topo maps and common road maps) can be read directly. A wallet size card is included to convert other map scales. Calculates traveling distances and compass direction using classic, reliable technology. Black Dial with silver tone hands and marker