Features:- Design: Pushing against the notion that watches had to fade into the background of an outfit, the 51-30 is designed to go big in every sense.- Durability: Dive-ready 300m/30 ATM water resistance and solid stainless steel construction make the 51-30 Chrono one of the burliest pieces in the line.- Special Feature: The crown and pushers are located on the 9 o'clock side of the case instead of 3 o'clock to prevent """"wrist bite"""" during active use. Uni-directional rotating bezel for an analog countdown timer. 6-hand chronograph with 24-hour and second timer subdials.- Movement:Updated Miyota - OS20 Japanese quartz 6-hand chronograph with date and a 9 o'clock crown and pusher placement.- Water Rating: 300 Meter/30 ATM.