百達翡麗，精細，18k金腕錶，配計時功能及脈搏計刻度，型號5170，2011年製

Reference 5170 was launched in 2010 and offers a new look compared to its predecessor reference 5070. The tachymetre scale has been replaced by a 15 pulsation scale, found on some earlier chronographs from the vintage era, but also houses the latest calibre 29-535 PS with Patek Philippe's new hallmark of excellence, the Patek Philippe Seal.

In 2009, Patek Philippe created a new quality benchmark for its mechanical timepieces: the Patek Philippe Seal. This new emblem of horological excellence goes beyond any existing standards of the Swiss watch industry. Uniquely, the Patek Philippe Seal applies to the completely assembled watch as delivered to its owner. In conjunction with these standards, the Seal represents a commitment to lifelong servicing and restoration for all timepieces created by the firm since 1839.