Seiko Men's SNAD06 Flight Computer Two-Tone Watch Flight computer, alarm chronograph Rotary slide rule bezel for rapid calculations and conversions of flight data as required by pilots Chronograph can measure up to 60 minutes in 1/5 second increments; after 60 minutes it will start counting again from "0" repeatedly up to 12-hours, alarm can be set on a 12-hour basis Alarm hands can indicate the time in a different time zone Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving