Had the same problem with my Lewmar
. I have 10mm chain and the option of ISO or DIN chain. The gypsy had a number on it which appeared to be irrelevant, but by looking at the manufacturers specifications I was able to establish which type of chain.
Jimmy Green is a UK supplier of rope
and chain and before I contacted the windlass
manufacturer, asked that I measure a 20 link length of chain in order to establish exactly which one.