I understand my Engineer Master II Diver using calibre ETA 2836-2 while
Trainmaster Cleveland Espress is calibre ETA2836-2 with COSC certification.
Does this mean both watches are using the same calibre, albeit one is with a COSC certification ?
If I am not wrong, COSC only a shown of verification that the watch has been subjected and passed a series of test (among them the -4/+6 sec daily rate spec). The test itself does not make the watch more accurate.
If that is so, does it also mean both watches will have the same accuracy ?
As I am new to automatic movement, I am presuming that accuracy of the movement mainly depends of calibre. Am I right in this sense ?
Hope any kind soul in this forum can able to enlighten me.
Thanks in advance.