As is the case with most UN's, the 160 Chronometer must really been seen, felt and worn to fully appreciate its characteristics and charm . Of all the UN's I've worn, I can honestly say this piece far and away possesses the most inert beauty of them all, combining timeless design and old world workmanship within a modern timepiece.
You are quite correct about its relatively slim size for a 43mm watch, which makes for a very comfortable fit.