First of all, about the DB15. Even it we are not speaking about applied figures, the method used by DB is very complex. They apply several layers of paint and you can feel that the figures are not "mere" figures. The result is visually impressive.
About the saphire hands of the DB26, I really love them and I don't have the same feeling than you: they don't look cheap, they look great if not gorgeous !
Last point is the price. I'm not able to measure the difference of innovation between the JLC and the DB. Why this difference would be 20%, why not 300% ? It is impossible to tell a percentage.
The difference of price is due to the fact that you have an excellent watch coming from a large brand in one hand and an exclusive watch coming from an independant company which produces aroud 200/300 watches a year in the other hand. It is not the same result and not the same way of thinking.
Thanks again Pifpaf for your report.
Fr.Xavier