There are few timepieces that are not COSC-certified that are exceptional. The Jaeger LeCoultre brand is an exception. Jaeger LeCoultre timepieces undergo 1000 hours of independent testing They are the pinnacle of time-keeping excellence! Forget Rolex, Breitling and other water brands that are “exceptional.” Jaeger LeCoultre is the best timepiece on the market and this is why! #JaegerLeCoultre #MasterControl