PATEK PHILIPPE’s manual-wound CH 29-535 PS chronograph calibre, originally introduced in a ladies’ watch in 2009, has been used in the men’s 5170 series since 2010, and the new 5172G-001 is the fifth iteration. The movement has six patented innovations that optimize the chronograph function, including refined tooth profiles, blocking lever and hammers, and an optimized split seconds wheel.
News from Baselworld: PATEK PHILIPPE
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