Hello Peter,
More interesting news...
HLF is the more common end piece..HLD was made when Heuer realized that some cases had been drilled incorrectly for the spring bars, and as such the holes were too close to the case on the top side, ie, you really have to apply a lot of pressure to the spring bar when installing from the back side of the case..this was only evident in 1163 cases..11630 were all drilled the same, so HLF is proper..
To answer your question about Monza..HLC would work for the case, and if seeking a bracelet for the PVD, bracelet # 340 used in the 2000 series would work.
Hope this makes sense..white smoke starting to bellow...
Cheers,
David