Hey everyone, just discovered this forum when searching for a new strap for my Chrono SuperOcean? I stumble on the model page indicating the lug width is 20 mm and after looking through this sub forum I discovered WACCEX seems to be a quality option, especially for my first strap

. However, going through their site, I'm a bit confused. I decided on a deployment clasp but noticed there's different options that seem confusing. I don't understand the difference between 20/18, 22/20 etc. I can't seem to figure out which one I need. If someone could point me in the right direction that would be great. Thanks and I hope to learn more from everyone!