Patek Philippe. An 18k White Gold Chronograph Wristwatch with Breguet Numerals and Pulsation Scale

Reference 5170 was launched in 2010 and offered a new look compared to its predecessor, the reference 5070. The tachymeter scale was replaced by a pulsation scale, inspired by earlier chronographs from the vintage era, and it housed the latest caliber 29-535 PS with Patek Philippe's new mark 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.

The white gold version of the reference, such as the present watch, was introduced in 2013 as reference 5170G. This new white metal watch is most notable for its different dial which, in contrast to the yellow gold model, sports a stunning new dial type with the much sought-after Breguet numerals.