Quartz movement.Digital date display.Small white numbers and indices on outer concave ring.Polished stainless steel bezel is engraved with a black tachymeter ruler.Atomic Timekeeping (US - Japan).Receives time calibration radio signals which keep the displayed time accurate. Auto receive function (up to 6 times per day).Manual receive function.Signal: WWVB Frequency: 60kHz US- 40/60kHz.Tough solar power.Auto LED Light with afterglow.Dual time.Daily alarm.1/20 second chronograph.Measuring capacity: 5959.99.Auto Calendar (pre-programmed until the year 2099).Accuracy: +/-15 seconds per month (with no signal calibration).Polished stainless steel case crown and caseback.100 meters/330 feet water resistant.