Hi everyone,
After confirming that my Aerospace titanium (Model E56061) is in fact original (Thanks guys!

) I am trying to get the strap sorted out.
I need to get hold of a tang buckle, but am not sure how to measure it. The one that it has currently (not a Breitling buckle) measures 18mm inside and 22mm outside (if that makes sense?)
So would this be an 18mm buckle or a 22mm buckle (I see both sizes are available)
Then a final question, does anyone know where I could get hold of one in South Africa? The agents have not been very helpful, even a secondhand one would be great as the watch itself is quite dated.
Thanks all