Breitling watch transocean chronograph black ocean classic braceletab0510u4bb2152a made with travellers and adventures in mind the breitling transocean chronograph unitime watch boasts a world time mechanism that lets the wearer change time zone by simply turning the crown instantly correcting the hour hand city disk and 24 hour disk while automatically adjusting the date to local time hidden within the impressive 46mm steel case is the chronometer certified breitling 05 self winding