1920 to 1965 Material Catalog Patek Philippe SA Papercover staplebound catalog book detailing material offerings for Patek Philippe watches. Includes sections on balance wheels, hairsprings, and calibres, with valuable pairing black-and-white photographs and illustrations for context.
0-9631669-4-5
ClockWorks Press International, Inc.
2000
ClockWorks Press International, Inc.
Reference