Crown thread resizing

[Neverenoughwatches]

Hi all watch people, hope you are all doing well. Here is my first attempt at using the Star crown taps. The crown on grandfather's watch was very worn with virtually no grip left and quite undersize i thought for my chunky digits. So i decided to find something more suitable, finding the right thread on the assortment of crowns i had was proving tedious. So it seemed the perfect opportunity test out this little gadget, i must say I'm rather impressed. The drilling out of a smaller crown thread and re- tapping to the size i needed 0.95 was a complete doddle. A little oil required for both the drill and tap and with John's help discovering the depth stop on the crown vice saved me potentially drilling too far or breaking the tap. This is probably the first time I've managed to give the watch a full wind and bizarrely enough the amplitude has jumped by around 50° and the tg trace is vastly improved from the last time i checked. How crazy is that ?

[mikepilk]

21 minutes ago, Neverenoughwatches said:

Hi all watch people, hope you are all doing well. Here is my first attempt at using the Star crown taps. 

What are they ?  

22 minutes ago, Neverenoughwatches said:

So it seemed the perfect opportunity test out this little gadget, i must say I'm rather impressed.

What little gadget ?  All I see is a watch and crown 

 

[Neverenoughwatches]

1 hour ago, mikepilk said:

What are they ?  

What little gadget ?  All I see is a watch and crown 

 

Haha they are in the background, i posted about them a few weeks ago, let me find it.

https://www.watchrepairtalk.com/topic/27046-tool-of-the-day/?do=findComment&comment=231914

Edited November 20 by Neverenoughwatches