Hamilton and Pulsar back covers needed

[albertofenini]

Dear All,
I'm lloking for the back cover and the screw retaining ring for these two watches.
Bracelets would also be of interests but only after I have found the covers.

First choice for GF covers, but steel will also make.

Thanks for any help, Alberto

IMG01055.jpg

[SASM]

I could at least provide two screw retaining rings, but I do not have any back covers left. Hanno.