Patek Perpetual Calendar/Chronograph's at their best.
For me, I would prefer the 5970, purely for it's additional size and the square pushers.

I had the 3970 and sold it after the 5970 came out. I was bothered by the hands (3rd series) and particularly the diameter/thickness ratio.
The 5970 I now have is just killer. Everything about that watch is right. For me it may be equaled but never surpassed. Truly a timeless piece.
My choice was 3970G silver dial and never regret it.
Fabio
