Patek Philippe Introduces Ref 5470P - its First 1/10th Second Chronograph

Patek Philippe has developed its first 1/10th second chronograph by heavily adapting one of the brand's earliest fully in-house wristwatch chronograph movements.The new Ref 5470P houses a reworked version of Patek's CH 29-535 PS calibre from 2009, which now receives the '1/10' suffix. The manually wound movement's balance has been sped up from 4Hz to 5Hz (or 36,000 vibrations per hour) which allows for the 10 steps per second required for a 1/10th second chronograph.A dedicated 1/10th second mec...