I have the 5170J and needed a strap to fit. I seriously considered the black as the older pieces from the 40s had black straps in pictures and I agree the black would really sizzle on this watch. But, I ultimately went with brown. Next time black.
It's not technically possible with this calibre, that would mean a new calibre
By: Dje : January 9th, 2012-02:25
Hi Nicolas,
As it is not possible technically to change it on this calibre, and I don't imagine them making a new manual wind chronograph calibre to modify that only, don't wait for it.
per the press relesae. It will interesting to see if they make it in different metals. The price sure will be high. Better to grab a J now while you still can.
This year and on the 5711 the horizontal strips on the dial will be a little bigger and as a result the reference 5711 will be dropped and given a new reference.