Combining a complicated perpetual calendar chronograph mechanism with an enigmatic black dial, along with finely crafted platinum case, the reference 5970P is a wondrous symbiosis of Haute Horlogerie and supreme craftsmanship. At the time, it was the latest in a long series of widely-adored wristwatches to house this specific complication. The production run of each serially-produced perpetual calendar chronograph wristwatch is as follows: ref. 5970 (2004 – 2011), ref. 3970 (1987 - 2004). ref. 2499 (1949 - 1987), and ref. 1518 (1940 - 1951). According to our research, the ref. 5970 was the first model developed and designed by Thierry Stern upon his took the reins of leadership.

The 5970 was available in all four precious metals, and was only produced for seven short years — the shortest production run of any Patek Philippe perpetual calendar chronograph. It was also the last to use the modified Lemania 2310, as the 5270 replaced the 5970 and featured an in-house movement. The case of the 5970 presents a significant increase in size, from 36mm in the 3970 to a more modern 40mm. The present example in platinum is factory-sealed, and in never-been-used condition. Few brands in the world carry the gravitas of their name like Patek Philippe, and this is an exceptional opportunity for connoisseurs of fine perpetual calendar wristwatches.