Patek Philippe

I personally prefer MM as it seem to describe the curves and lines on this magnificent watch. I finally found the final piece for my 9-90 collection.(Thanks Roni and Alex) Here are some pics- I have also included all my pieces but not in one picture as I ...  

Suitbert, thanks for that translation. It certainly makes sense. I was looking at my bathroom tiles and the 425 looks like a little rectangular tile. Sorry about the pic-the watch has been polished but pics have not ben updated. Julian