3 Answers

No1- John McGuffin...read on...http://cain.ulst.ac.uk/events/intern/docs/jmcg74.htm

Still, every single element link of the 3970 feels so tight and considered, especially when put next to the 5270. The 5270 isn't a bad watch at all – on the contrary, it's an amazing watch! Patek holds six patents on the in-house caliber 29-535 PS, the chronograph operates smoothly, and link the finishing is excellent; Paul Boutros, now of Phillips, did an excellent in-depth review of the 5270 way link back in 2014.

In my late twenties link and early thirties I was lucky very close friends link with a talented artist and painter who was about 70 years my senior. When people asked him how long a painting took he'd just cite his ageit was a culmination of his life's work and experiences. So when I asked Pierre Jacques CEO of De Bethune how long this watch had been in development "22 years" was link a poetic and familiar answer.