Breitling Battery Replacement – Reading – Any Recommendations ?

Have tried the search function, have a Ti Breitling Aerospace, bought here many moons ago that now needs a battery.

I’m Reading based, any recommendations on who I can trust with it ? Last time it went back to Breitling for a full service and battery and has hardly been worn since, so trying to avoid that ridiculous cost again !!

Cheers in advance.