keep the old insert. take out the new bezelinsert, put the bezelinsert on your electric stove, numerals up and heat with 3/4 of your max. power for around 1 minute. until the red and blue change colour and it will match somewhat the red on your 24 hour hand.... up to 1,5 minutes should do the trick. sounds weird, but works a treat. and show your result, please. kind regards. achim
May I ask the first three numbers of the serial no. as I am trying to accurately date to the specific qtr.mine which looks the same, (I do not have the tools to open the case back). Would you believe the my local watch shop advertising servicing of Rolex gave me an insurance valuation with a date of manufacture of 1980. And my one is a PGC , I think they mixed up my 621k serial number with a 6.21m serial number!!.
PS I think the newer insert looks better.
Thanks very much indeed, mine at 621*** places it in the 3rd or 4th qtr 1960 which is what I thought.
Yes you are correct my original dial is a "swiss" only gloss black, gilt dial with chapter ring, and SCOC wording.
In the early 90's I had the dial and hands (small 24hr arrow head pointer) replaced with service ones but thankfully asked for the return of the originals. I only changed them as the dials trithim was marked with brown spots, I intend to take a photo of this and post it on this fourm in the near future in the hope that someone has a cure, as I would like to have it replaced at some time.
I do love these vintage 1675's and 5513's, after my dialy fix of this site for the past 2years this is my first post, thanks again for your response.