Reference Points: Understanding The Entire Lineage Of Patek Philippe Perpetual Calendar Chronographs
Reference Points: Understanding The Entire Lineage Of Patek Philippe Perpetual Calendar Chronographs Perpetual calendar chronographs by Patek Philippe present arguably the most important combination of complications in 20th-century horology. We're taking you all the way back to the beginning. Originally published by Ben Clymer on HODINKEE, March