Yours is not 1:1 my friend. there is a new model out , from BP I think is more accurate.
but still there is not so call 1:1 rolex rep out in the market. you could only find super good ones and mod it to same.
as for dssd, gen has bigger markers, different font on bezel insert. Sharpie pearl. Straight triangle ..etc
Not to upset you my friend, you have one of the oldest version of dssd and its very not accurate