Crown gauge

Hello guys,

The other day I received this:



I’m trying to sort them out, initially by stem size. E.g 0.9mm thread which can be used on stem for 30T2 movement etc. So I bought myself the bergeon 6740 gauge.



Some are so fiddly however that it’s hard to hold up onto the gauge to even thread them on. Would a crown winder tool enable me to test these out more efficiently, or do you have a better method?

Secondly, I have noted already that some go above and beyond the 1.2 thread on the gauge. Perhaps they fit a 1.3mm thread or 1.4mm etc. is there another gauge I can buy which goes up to bigger sizes or do you think a micrometer will suffice in measuring these?

Oh while I’m here, does anyone have a recommendation for a matt to use on my desk when doing simple tasks, even changing spring bars when they fall out are difficult to see on my dark surface… let alone little screws or crowns!

Thanks everyone 😀

Ollie

I'll keep you posted if I find any with those dimensions 😀

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I tried a pin vice, but when opened wide enough for the crown it was way inside the outer ring (is that called the collet?) so wasn't suitable for this purpose... and even if i could have secured it tightly using the vice, wouldn't have extended out far enough to be able to wind on the gauge... so yes, I think Crown winder is likely the route I take 😀

Can't help with the crowns but on my bench I have a fairly large cut off from laminate flooring as the base. I use high quality white paper (note, must be good or you'll get fibres from it). I use the paper once then turn it over, then chick it away. Useful for making small notes as you work too.