The Chronofiable® test, developed at the beginning of the 1980s by the CCF SA, was devised to expose timepieces to an accelerated ageing test simulating the equivalent of 6 months’ effective wear in 21 days.

This is achieved by the execution of a long series of tests such as the initial monitoring of the movement functions, an additional rate, the amplitude test taken at two temperature levels (0°C and 50°C), the monitoring of the power reserve and the winding velocity. Included in this artificial ageing cycle test are extensive linear and angular accelerations as well as some 20,000 shocks ranging from 250 to 5500 m/s 2 (9.81 m/s 2 = 1g). The last step is a final monitoring phase applying the same elements than during the initial monitoring.

Conditions like these attest unequivocally to the ability of the RMUL1 caliber to withstand an array of extreme conditions without experiencing any effects on its performance.