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Horlogerie
·Rob,
I was interested to see that you fabricated the friction staff for the CPR 1908 Waltham rather than to use a readily available replacement staff. Perhaps this decision was necessitated because of supply problems in France? I have several watches in my collection for which I have been obliged to fabricate staffs. One Keystone Howard series 5, an E Howard N size 5th model, and a Brandt (Omega) grade CCR. Being able to fabricate the parts comes in very handy when spares aren't available, but I do this only as a last resort.
Some years ago, I needed a staff for a Russian marine chronometer, but after much fruitless hunting, decided I would fabricate one. Problem! The staff was 28.5 mm long! How to do it? Necessity being the mother of invention, after considerable thought, I fabricated a jig which worked beautifully. I used the head stocks from two Boley lathes on one lathe bed, and applied the jig which you will see in the pictures.
Great solution to a difficult problem on such a long staff.
Yes indeed you are correct, wasn't able to source a replacement staff locally, so it was quicker to make one than to try overseas... Under normal circumstances I would buy a replacement rather than make one.
