In 1989 I attended the 150th Anniversary Patek auction in New York by Habsburgh Feldman (which was the predecessor of Antiquorum). The exhibition for that auction was at Tiffany. That event truly put Patek on the map as far as the general public's awareness of the brand. In the years after, the prices of vintage Patek's sky rocketed and starting with Philippe Stern's introduction in the mid 1990s of the 5035, 5070, 5050 and 5004, etc., all classics, the demand for modern Pateks grew exponentially.