Jaeger lecoultre watch deep sea chronograph cermet this three counter chronograph movement takes its aesthetic inspiration from the the 1959 memovox deep sea model the chronograph operating indicator is inspired by the jaeger lecoultre 1930s chronoflight onboard instrument a diver needs to be able to see at a glance whether the disc shows that the chronograph is ready for use white in operation whitered or stopped red its high tech case in reinforced cermet a material consisting of