3970EP, Second Series, Perpetual Calendar Chronograph, Platinum 363.179 This is amongst the best

This is amongst the best examples documented to date

from the year of A

the very first chronograph from brothers Bart and Tim Grönefeld

1 of just 20 examples made

making the case even more svelte

3970EP, Second Series, Perpetual Calendar Chronograph, Platinum 363.179 This is amongst the bestA Second Series 3970 in platinum, 1 of 11 Second Series examples in platinum known, here with an Italian calendar. This is an unbelievably well preserved example with an untouched case and magnificent, unrestored dial. Its condition defies time. The 3970 succeeded the 2499 in 1986, the most significant contribution of Philippe Sterns tenure over the brand. It features a 36mm Ateliers Runis case, Lemania bauche calibre CH 27 70 Q, feuille hands of