The USA was only about 10% of the Rolex world wide sales back then, only the USA plus possibly the UK and Canada had some form of radiative materials control legislation in place , which may have introduced some restrictions......the rest of the World had absolutely no restrictions until the 1963 Rome Convention came into force some time later most likely from 64 onwards as any when it was adopted by each nation State.
All these facts are in the public domain..........I linked to a lot of source material to build a lot of my case...............and a little birdie based on an unimpeachable source has confirmed what underlines are for.
RC Tritec a major Swiss luminous paint supplier to the Swiss watch Industry stated by a member of the founding family in a watch journal article they went to tritium in 1962 unfortunately it doesn't say when exactly.
Put up as many dials as you like......but until I see a more scientific approach to your deliberations, how can I put it into context, how can I weight the strength of your argument.
With all due respect please indulge me and answer these two simple questions:
1. Do you believe that Rolex at that time would put Tritium markings on exclamation dails and underline dials as per examples already highlighted in recent threads if they did not contain tritium on the dial or hands of the watch?
2. Did you know of M&B involvements in the dial painting process and if so kindly link me to where it been discussed previously other than by threads generated recently. I know I didn't till I did the research.
I'm not asking you to believe me, you as am I, are entirely welcome to your views, the truth is there somewhere in all of this.
But in this great world of vintage Rolex in which heaps over the years has been written about dials serifs, crown formats for years, I have no recollection in all the discussions around dials and the dial printing/painting process have we ever referenced to M&B's part in all of this. Everything to the best of my recollection has been attributted to the dial manufacturer.
Maybe there's is still a lot to learn.
Great healthy debate