How to identify the type of missing screw

[brunomartins]

Hi everyone!

I am trying to reassembled the click spring of a watch but can’t fit any leftover screw. Do you hve any tip to find a replacement?

movement As1203

osvaldo bruno

[HectorLooi]

Did you lose the screw or did you accidentally use it in the wrong location. The click screw is relatively short and has a shoulder. Check if any of the screws are standing proud of the plates.

You can also try getting a screw assortment and hope to find one that fits.

https://www.cousinsuk.com/product/click-screws-wristwatch-assorted

[brunomartins]

14 minutes ago, HectorLooi said:

Did you lose the screw or did you accidentally use it in the wrong location. The click screw is relatively short and has a shoulder. Check if any of the screws are standing proud of the plates.

You can also try getting a screw assortment and hope to find one that fits.

https://www.cousinsuk.com/product/click-screws-wristwatch-assorted

Thabk you

[JohnR725]

another source of a screw would be to find a partial movement to take the screw from. Then it helps to have the cross reference so I have the link to the cross reference page for that particular screw so you can see all the watches that are supposed to have the same.

http://cgi.julesborel.com/cgi-bin/matcgi2?ref=Y`\JVFYH

 

 

[spectre6000]

I have a tray of movements I've screwed up during my adventures. I don't know if this is recommended or not, but it's what I've done, and it's mostly worked out. I go through my borkulated movements, and pull screws and try them until I find something that at least works in terms of gauge and thread pitch. Then I'll either find a similar screw of the correct length (assuming the first one doesn't get the job done), or file the one I found down until it does what needs doing. If I can't do that, the movement missing a screw goes into a pile of movements that I haven't finished because I need parts, and I can order one or look over the next movement I can't salvage for whatever reason.

Edited September 17, 2022 by spectre6000