Patek Philippe’s 5170J (yellow gold) was introduced in 2010. With an in-house caliber (replacing the Ref 5070′s Lemania caliber), it was a worthy addition to the list of manually wound, two-register chronographs from Patek. This year, Patek has rolled out the 5170 in white gold. It is essentially the same as the 5170J, same movement and 39mm case size, though there has been a subtle dial revision.
Like the 5170J, the 5170 in white gold is powered by the hand-wound Caliber CH 29-535 PS, a double register column-wheel chronograph with 65 hours power reserve and bearing the PP seal of excellence. The big change here is the dial. It has a silvery-white dial with a full set of Breguet numerals (save for the where the chrono registers sit). This is significant because the prior model had two roman numerals XII and VI and stick baton hour markers. See here:
I really like the revision, being a fan of Breguet style numerals. What say you?
Pricing on the Patek Philippe 5170G will be $87,100. Full specs at Patek.com>>>