Patek Philippe early Steel Calatrava
By: Joe Cook : May 27th, 2022-15:16
I need help to identify this early Calatrava in Staybrite steel stamped in the case back FB François Borgel the famous case maker of the beginning of the 20th century, normally known for waterproof Calatrava Ref. 565, 437, 1463, pionnier of the water resi...