With a new watch on it's way

[Tiny]

With a new watch on it's way to me I thought I would try and find a technical drawing for Tissot Cal 791 it's swiss made right so I thought it would be easy to find one Ha ha think again Tiny I can't find one is there a special place to go to find drawings ?

 

 

 

So I have to shout out to anyone that can help me please 

 

[Neverenoughwatches]

12 minutes ago, Tiny said:

With a new watch on it's way to me I thought I would try and find a technical drawing for Tissot Cal 791 it's swiss made right so I thought it would be easy to find one Ha ha think again Tiny I can't find one is there a special place to go to find drawings ?

 

 

 

So I have to shout out to anyone that can help me please 

 

Hiya T.  Did you get the jewels sorted on the Seiko ?

[Tiny]

No not yet 

I think it came from the second Movement I had on my bench. I can't see any missing jewel holes

My mainspring winder has arrived for the Seiko today so I'm going to wind my barrel tomorrow

 

[clockboy]

Found this parts list. However the movement does not seem over complicated..Just strip the movement down taking plenty of pics and service.
https://www.watch-spares.com/tag/tissot-mechanical-movements/page/6/

Edited May 18, 2022 by clockboy

[WatchMaker]

Hi @Tiny

Remember to always look around the family your movement comes from where you don't come up trumps if you just use your specific movement reference.

Your 791 is a manual wind no seconds but a 781 is in the same family with a second hand; the 794 an automatic with date. Differences of course but the same basics.

Then Cousins is good for docs: https://www.cousinsuk.com/document/search?SearchString=Tissot. Note 781, 794 etc.

Or google tissot 794 pdf

You get the gist. Hopefully this will get to what you need.

[JohnR725]

8 hours ago, Tiny said:

 technical drawing for Tissot Cal 791 i

Usually in watch repair unless there's something special about it there probably isn't a technical manual the most you'll ever get is a parts list. Usually the watch companies feel anything that looks reasonably simple that a watchmaker should do it and doesn't need a step-by-step guide. Sometimes the watch companies might have a consolidated guide of several watches but usually they have to have complications of some sort. But it also depends upon the manufacture 

Then there are websites like this a online parts listing. If you're lucky they might even still have the part in it can be purchased. But if you're unlucky you can also click on the part numbers and anything get a list of all the watches that use that same part. Often times parts will be used in multiple of watches and he might do a fine those if you can't find your watch in other words if you need apart it really helps to know what cross references to.

http://cgi.julesborel.com/cgi-bin/matcgi2?ref=TIS_791

Then next site is interesting it has pictures because often times people don't give us pictures of their watch. It's hard to help people with answers to questions if they don't get pictures you don't did give us pictures that was good. It also gives some technical knowledge like this is part of a much larger family. If there was a service manual but I doubt that there was one often times it would be the base caliber would be the manual your book for and somewhere that might be supplemental on may be. But this one is simple enough I doubt there was a service guide the most you'd ever get would be a parts list if You are lucky.

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Tissot_791

 

 

 

[clockboy]

Yes excellent advice from “Watchmaker”  & John caliburs develop over time so although they change there are always similarities.. Seiko caliburs being a good example. Over time with experience referring to service manuals only comes into play with a complication.
 

Edited May 19, 2022 by clockboy