This original and authentic wrist band from Junghans, model 018-1504-901 / 42050-4335 / 9150735 / LA-112 is made of high quality ceramics. This wrist band will be attached to the watch case by pushpin fixation / pushpins. This strap can be used universally for different watch models of the same brand (and also watch models from other brands in most cases) because of the strap straight ending/attachment part shape. We kindly ask you to contact us at if you have any doubts.