vinn3

there are ways to repair lose case parts. some jewelers are "silversmiths" (tinkers). this forum should have one. don't use "trial and error" on a valuable silver case. vinn

Thanks. good show !

burning? i always wanted to visit that one. vin

modern inexpensive pocket watches tend to have a very tight "pop off" back. and require a press to re install them. modern screw back pocket watches tend to have poor threads, so inspect and pry carefully. vin

if the screw driver tip does not touch the bottom of the slot, you are driving a wedge in and might spread or break the screw head. have you ever seen a screw head with one side broken off? to prevent making a wedge the blade is "hollow ground". the tip touches the bottom - and 99.5% contact with the sides of the slot. i hate to see a watch with distorted screw heads. use "blueing" to view the contact. vin

how about a pix,?

welcome to the forum. vin

just look it up in a watch repair book or video.

first law of mechanics; "don't remove the parts you don't need to". you can clean those with peg wood. vinn

i don't think they have a shelf life. but you have to know how to melt and use them - as a form of glue. vin

block magnetism?

high quality stainless is not magnetic, nor is brass.

good luck.