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By nickelsilver · Posted
The modern ones are graduated in 0.01mm on the know, this one not. You learn quickly how much to turn by feel and can hit the thickness wanted- and yes, I use a vertical mic to check the thickness often. -
By Neverenoughwatches · Posted
Oooh I like that, the centre section that moves up and down....is that measurable on the knob, do you use a depth gauge on the top to set the height or just measure the piece you're working on as you go ? -
It may just not be a 25.17 movement but I don't know enough about Longines to what came later. Edit Just found this which dates to 1935 so maybe the 25.17 was made before 1939 as stated on Ranfft. https://www.joseph-watches.com/all-products/longines-cal-25-17-stainless-steel-1930s/ Re Edit Done i little more searching and to me it looks like Ranfft is wrong but can't find what actual date these were first produced. Looking at other examples my thoughts would be it's a genuine movement but the dial and case both look wrong so I suppose it all comes down to what you paid for it. -
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I am missing whatever is supposed to put a little pressure on the date wheel. Can anyone please show me what the part or spring looks like and where it goes so that I can one? Yes I do need to clean up some of the grease.
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