Think of it as a different acronym that pertains to the Heuer models, as I am aware, HLC were used by cases like the 1153 Carrera... HLF are for 1163 and will fit 11630 Autavia, HLD are for early version cases of the 1163 Autavia cases, there are other models, but the whole story is that each one was specific to a particular model from Heuer and each had a different shape/curve to fit snug with the lug of the watch cases... so, HLC isn't a fake it's more for the 1153 style Carrera cases.

Hope this is of help.

: Hi, I wonder if someone could help me this (hopefully not too
: stupid) question… are all beads of rice bracelet end pieces
: stamped with "HLC" going to be made by GF, or was
: "HLC" a generic reference (or indeed are there fakes
: stamped HLC)… any thoughts on this would be much appreciated.