Chiruku 25 Posted March 18, 2015 My next parts research in a build has brought me to the case back - and compatibility there of. The case I am working with is BP - however I wanted to pick up a branded Comex case back from a TD (cheap comex build like this - http://www.pf-818.co...800-p-7807.html ) - TD's I have asked seem unable/reluctant to offer me just the case back on its own so would have to pick up the whole watch. (Looked at the ones Phong had to offer, but as nice as they are can't bring myself to drop $300 on just a case back Both are 40mm in diameter. Anyone any idea whether the branded one would fit onto my BP case? Share this post Link to post Share on other sites