Great question. I do like the DaVinci line quite a lot, however the number of Portuguese in my collection outnumber DaVinci by 5:1. Still my DaVinci Perpetual Kurt Klaus is the favorite in my collection. I have no official sales data to justify how the product sells - so I could not make any strong statements to back up the ones in this thread about the DaVinci's lower sales figures - especially since IWC doesn't even share those - unless you got a regional comment from a country manager or Boutique manager on what is selling better locally...
Paul, I would not say the Kurt Klaus edition was 'discontinued'. That was a limited edition.
I wouldn't mind seeing a DaVinci 'refresh' soon. Lest we forget that it was the DaVinci, so named that saved IWC from the industry crisis in the 1970s-1980s - when Kurt Klaus and IWC brass took a risk to invest in highly complicated watches that would reach new market segments to offset cheap watches from Japan and APAC.

I had an idea several years ago which I shared on the forum. Probably back in 2009 or so. I photoshopped up a sleek DaVinci Perpetual with matte black dial, case in ceramic and hands and indices in a dark titanium. The idea, was a subtle - more elusive and mysterious watch that required you to look a little more closely to see fine details. As you know the Kurt Klaus Perpetuals have wonderful guilloche dials and hidden features that appear in different lighting... My idea below got a lot of negative comments, as I recall. Mostly due to "readability" which I do not think is a factor in jewelry - and now with all the ceramic Big Pilots with dark green and Blue and colored dial features are more popular - I wonder if this sentiment has changed...hmmmm
