Overall hugely impressed with both the quality of the strap and the service received from Zuludiver, from the prompt delivery to the way in which the strap was packaged. Sizing the strap is very simple for my very large 21.5cm wrist, just make sure you have a metal rule and a stanley type craft knife with a new blade. Only one real criticism is the spring bars ends are slightly loose in my Seiko watch as they do use oversized spring bars which is a shame but understandable. Things that would make the strap perfect is on the fly micro adjustment although this would no doubt be at a higher cost but well worth it for some people such as myself. Overall totally recommend and will no doubt be buying straps from you again in the future, I would buy one today if you did a better clasp with micro adjust for my Omega Seamaster but sure this is more than likely in the pipeline so will keep looking.