3940P, Perpetual Calendar, Third Series, Platinum 5575G The 3970 succeeded the 2499

The 3970 succeeded the 2499 in 1986

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

This example is entirely original

Saffiano sits close to the skin

The Trio was Vianney Halter’s third model

3940P, Perpetual Calendar, Third Series, Platinum 5575G The 3970 succeeded the 2499A 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