A Quick Modification Information Guide This guide is meant as an informational tool, to help those of you wishing to modify you Submariners or Sea Dwellers. I will talk through some of the processes involved and give some tips along the way. This is called my “MBW 1680 Guide” because as the name suggests the work has been done on an MBW 1680, BUT this doesn’t meant that it is restricted to said watch, these works can be performed on many watches, in particular the Submariner and Sea Dwelle