PATEK launched this model after 30 years absence from making Chronographs and it is based on the vintage spilt chronograph ref. 2512.
The impressive size of 42mm was considered as a daring move as the trend at time of launch was mostly 36-38mm range and this model was not well accepted in Asian market due to smaller wrist of the Asians.
Yelow gold with black dial was the 1st production, followed by pink, white with silver dial and finally Platinum model with blue dial.
The yellow gold with its outstanding black dial is regarded as the most attractive amongst the four series and with the current trend of upsizing of all watches, it's now very much sought after by collectors.
THIS WATCH COMES WITH A CERTIFICATE FROM THE PATEK PHILLIPPE ARCHIVE