My pleasure Geross
By: Mark in Paris : May 28th, 2016-15:29
This involvement in caliber development is something we also see in the 29-535 caliber (chronograph). Patek is IMHO a step forward in terms of caliber improvements if we look back at the 240, the 29-535 (5170, 5270...), the 28-520 (5960, 5980...), the Adv...