MCG (Markus)
3528
The word compax is a UG brand specific naming of complications.
As Universal Genève was once a brand with a strong chronograph portfolio, they invented this phrase.
And as they became very popular, the industry simply copied it when referring to Chronographs…
And yes, as watches became more complicated, they needed to find augmentations of this phrase…and this is where it became complicated with bi- and tri-… 😅