The Ref. 5370, the first split-seconds chronograph endowed with the proprietary caliber CHR 29-535 PS, was launched in 2015 with a platinum case and a black enamel dial. This grand complication has now been subtly upgraded with a new blue face with glossy finish that reflects Patek Philippe’s tradition in Grand Feu enamel dials.
Caliber CHR 29-535 PS. Manually wound mechanical movement, split-seconds chronograph with two column wheels, wheel clutch (horizontal), and instantaneous 30-minute counter, sweep chronograph and split-seconds hands, subsidiary seconds
Center hour and minute hands Sweep chronograph and split-seconds hands. 30-minute counter at 6 o'clock Subsidiary seconds at 9 o'clock
Hand-stitched alligator leather with large square scales, shiny night blue,
Fold-over clasp in 950 platinum
30 meters (3 ATM)
As is the case with all of Patek Philippe’s platinum wristwatches, the new Ref. 5370P-011 is graced with a small diamond between the lugs at 6 o’clock. It replaces its predecessor with the black enamel dial, presenting a new combination of superb craftsmanship and watchmaking artistry.