I believe itโs the first and last time Zenith used a non in house calibre, brought out under a Monsieur Philippe DuFour, perhaps youโve heard of him? Heโs over at Rolex now ๐
More importantly, you have the strength/confidence to venture trying new things even while knowing there is the possibility of โerrorโโฆthis highlights to me a strong artistic spirit (and experience too) where always venturing deeper/farther to reveal new ...