Brand: Seiko Model: World Time Digital/Analog Reference: H023-00B0 Movement: Quartz Case: steel Diameter: 42 mm Bracelet: Original Steel (19cm) Full set Functions: Time/calendar function Full automatic calendar Daylight saving time display World time function Time and date of 28 cities Time transfer function Alarm function World time alarm function Stopwatch function Up to maximum 100 hours in 1/1000 seconds Interval measurements Rolling display Rolling screen with cities display Indicator for battery life Will ship by UPS, Dhl Fast and Safe