Originally posted by Sub5
I had also the possibility to compare both, the old and the new version.
Honestly the old blue is nicer. The new blue is not that bad as on the photograph. It varies in different light conditions. In some light conditions there is no difference to the old blue in artificial bright halogen light the blue of the new model becomes "poppy" or socalled "Aral like". This "aral" taint is underlined by the white dots of the new maxi dial. I have also seen a version with the briliant dial which was not so bad.
It might be hard to capture the real nature of this blue under artificial or flash light since majority of the photographs have this "aral" taint.
Would be interesting to see an outdoor wrist shot under natural daylight.
On the other side there are several imprvements in the new model regarding the bracelet and the clasp. Holding both models in the hands the decisison to chose the old style 16613 because of the blue might be not so obvious or easy.

kind regards thomas
The photo above was taken indoor, but under the sky lights we have in the living room which provide considerable natural light.

I did try to do a comparison shot in my studio, and it just didn't work - which is why I decided to do the above wrist shot in natural light.