Reviews Description: Price breakthrough! Own this 21st century Silicon Scientific® atomic wristwatch for under $30! 21st century atomic accuracy meets stainless steel style. Now atomic timekeeping is truly affordable! This sporty Silicon Scientific® watch automatically accepts time signals from the U.S. atomic clock and resets itself so you'll always know precisely what time it is. It adjusts for daylight savings time and leap years too. Also features US time zone switch, day/month/date, water resistant case to 100 ft., stainless steel butterfly clasp/band, backlit display, dual alarms and more. Not available in AK, HI, PR. Sorry expedited shipping is not available on this item.