This robust little guy is the heart inside my Tank Basculante A10. I like it that the balance bridge is supported by two screws - a feature I have never seen on a movement this small before. Anybody can help me identify the origin of Cartier cal. 161? ...
Dear Friend, the caliber in your watch is a Frederic Piguet 61 extra thin. one of the top manual calibers ever produced and ultra thin to boot. Enjoy. Rafael