Rolex

Bi-metal versions are not particularly well researched, they are not the most popular models and do not always run to the same serial number ranges of their steel counterparts. Seven years ago I purchased a floating cosmograph daytona you see below. Based...  

IMHO from what I've found to-date up to very early L5 for the gold pieces, probably slightly earlier for the bi-metal but not much beyond L424. The reason for the slightly later L5 for 16528's, is that I came across them over 10 years ago before floating ... 

That approach is much safer than any " oooh, they said it is good / bad " fora advices. ;) Best, Nicolas

when I first started out with vintage Rolex, back then there wasn't as much information around or as easily accessible and needless to say in the early days I made a few mistakes. Fortunately watches were not as expensive back then and it didn't hurt as m... 

But taking the time to build your own convinction is something very rewarding... Best, Nicolas

And with the help of the internet everyone is instant expert two cut and paste on to site and things become gospel. A 1680 Red sub meters first in 4 million case gives one enough distance to say ehhh maybe not. But the margins need a little room for all k... 

everything into neat conventions it makes it easier to market and hype perceived values, and in all fairness many instances of documented examples if in enough profusion will support such conventions. There are of course for some model such as Comex and m... 

I always add the caveat in any post or report I make to say these are my observation from examples seen and is never definitive as we always know with Rolex. But once you have some established line it is easier to navigate around the borders and add color...