Bremont watch alt1 c black polished alt1 cpb known as the classic chronograph and part of the distinguished core collection this stunning bremont alt1 c black watch promises impeccable accuracy with its chronometer rated movement and ultimate durability thanks to the unique trip tick case construction that uses a hardened steel element containing scratch resistant sapphire crystal measuring to a neat 43mm in diameter and 16mm in thickness the case of this bremont alt 1c black watch moulds