3940P, Perpetual Calendar, Third Series, Platinum 5575G imposingly teutonic platinum Lange 1

imposingly teutonic platinum Lange 1 and amongst the most desirable Lange 1 references ever made

The 3970 succeeded the 2499 in 1986

more restrained second release from independent Berneron featuring a spectacular Lapis Lazuli dial

refined design

3940P, Perpetual Calendar, Third Series, Platinum 5575G imposingly teutonic platinum Lange 1A ref. 3940P from the Third Series with a silver moon and incredible case condition, preserved in its full set. The first Patek Philippe Perpetual Calendar made at scale, the 3940 is serious complication made simple at 36mm. Its revolutionary micro rotor calibre 240Q is a masterpiece of micro engineering, just 3. 75mm thin. Of all 3940 production, platinum is the rarest metal. Only platinum examples preserved the solid caseback only tradition through