I have a 5980 and was thinking of getting a custom strap made for it in place of the bracelet. My question is can the 5980 be fitted with a strap (I've never seen one)? Also, does Patek make their tangs in steel? Thanks. I have a bluish gator strap in mind that I think would really make it pop and give it a slightly less sporty feel without making it a dress watch per se.