I should have done a proper search from the website rather than use TAT, it looks like this is the answer:
https://forum.tz-uk.com/showthread.p...justable-Clasp
Does anyone have experience of the 117STZ001154 vs the 117STZ001159 clasp from a comfort perspective? I was aiming at the 117STZ001159 as they are both the same price anyway and that one retains the diver's extension.