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They may also have brass brads and nails in that diameter 2mm is very close! I use a lot of the 1.6 Escutcheon pins and brads for pinning. Takes a little work but hey they are really cheap! File some...

The wavy pattern I have seen on a lot of LeCoultre's. 5/64ths I have seen and used on some razor renewals, 5 32 / 0.16" I have not so far.
~Richard