A question on calibre.
By: akitaishi : December 27th, 2014-00:30
Hi guys, I have a question on the renowned Patek calibre 240. The patek website puts the year at which the calibre is awarded the patent was in 1977. But watching the Piaget purist video, a similar calibre was done by Piaget in 1957 called the calibre 9P....