The fictional character James Bond joined the Royal Navy Volunteer Reserve in 1941 as a lieutenant and demobilized as commander. Volunteer Reserve officers volunteered from the merchant marine, and were often better seamen than their Royal Navy counterparts. Their officer uniforms had sleeve strips in gold and red on blue denoting rank, and the stripes were wavy to distinguish them from RN officer stripes — hence their nickname, "wavy navy."
I thought this was the basis of the "authentic Bond" strap's regimental stripe, but I've discovered that I was in error. A member of the movie crew, Daniel Craig, pulled the 16mm strap off his watch and donated it to the production. Back in the day it looked black & gray on the silver screen, but its actual colors were black and olive green with two smaller red pinstripes:
That is the pattern of an authentic Bond strap which should be called an authentic Craig strap.