Jacques Lemans Strap F-5014 Formula 1 Black Strap Black Rubber Strap

SOURCE: Replacement Black Rubber Strap

Your local jeweller should be able to order t for you.

SOURCE: jacques lemans 1215

I think this should work for you...

Jacques Lemans has some instructions posted here:
http://www.jacqueslemans.com/JLinstructions.html

SOURCE: Black rubber strap by Oris Bc3

CALL FELDMAN WATCH COMPANY IN LOS ANGELES CA ON PICO BLVD.

SPEAK WITH JAMIE ..IT'S CHEAPER TO GET YOUR ORIS PARTS FROM A AUTHORIZEED DEALER THAN BUYING OVERSEAS THE MARK UP IS ALMOST 200% WITH THE SHIPPING INCLUDED . LAGJR

SOURCE: how do i maintain the color of the rubber strap ?

Replacement is likely to be the only answer. Perhapos you could try another style of strap from your local watch shop.

SOURCE: after a new wrist band for a Jacques lemans F1 - red

There will be a supplier in Australia very soon!!