Cleaning leather..? I have a survey band to be precise made out of...

I have a survey band to be precise made out of leather..
It has be through a lot and it's kinda stinky
Is within any way to verbs it? I can't find another one anywhere so i can not replace it.
I really like it and i want to prolong it's time for a while longer any suggestions?
Size of queen size quilt?
Answers:    Scrub it with saddle soap, or use a automotive leather form cleaner/conditioner, just spawn sure that if the watch is not impermeable that you keep the scrutinize itself dry.
How do I attain a musty smell past...