Swiss Watch Fair 1964
Electronic master clock model ECK 24 of small dimensions (20 x 25 x 15 cm) and the following outstanding characteristics entirely transistorised without mechanical contacts. Polarised impulse distribution - seconds, minutes, seconds + minutes
(or other intervals). Fed by mains, with i O hour power reserve for the master clock and up t 100 secondary clocks. Working stability daily rate less than - 1 sec/24. Set electronically for seconds and hundredths with the help of push buttons
.Works without any interference in any position, or magnetic field, variation of atmospheric pressure, gravity, humidity, dust and is resistant to vibrations and shocks. (PATEK PHILIPPE)