Howsey Posted July 25, 2023 Share Posted July 25, 2023 Hi, I'm attempting to replace a broken wheel on one of my older watches. Longines cal. 23ZS. It has a sweeping second hand. (Apparently, but I've not had it running. I'm very much a beginner and so before ordering a replacement part, could someone please confirm this is the 3rd wheel, I'm sure it is but as a novice I don't want to waste time ordering the wrong part, the references I've found online are a bit contradictory? Quote Link to comment Share on other sites More sharing options...
clockboy Posted July 25, 2023 Share Posted July 25, 2023 Welcome to the forum, enjoy.. Find attached a pic of the basic watch wheel identification.. 2 1 Quote Link to comment Share on other sites More sharing options...
RichardHarris123 Posted July 25, 2023 Share Posted July 25, 2023 Hello and welcome. Yes, third wheel. 1 Quote Link to comment Share on other sites More sharing options...
JohnR725 Posted July 25, 2023 Share Posted July 25, 2023 I have a website that lists parts So you can look up Part numbers and cross references and a PDF. http://cgi.julesborel.com/cgi-bin/matcgi2?ref=LON_23ZS 6 minutes ago, RichardHarris123 said: third wheel Is worth a try but looks like it's out of stock http://www.julesborel.com/s.nl/it.A/id.168388/.f But the fact that it once was in stock means that it may exist somewhere on the planet if you can find it 4408_Longines 23Z,23ZS,23ZD,23ZSD.pdf 1 1 Quote Link to comment Share on other sites More sharing options...
Howsey Posted July 25, 2023 Author Share Posted July 25, 2023 Thanks everyone. I can now try and find one. Quote Link to comment Share on other sites More sharing options...
Nucejoe Posted July 25, 2023 Share Posted July 25, 2023 Based on Dr ranfft site, calibs 23Z,23ZD, 23ZN and 23ZSD should share same 3rd wheel. Is the pivot broken in your watch? in which case the arbour can be replaced onto the gear. Good luck Quote Link to comment Share on other sites More sharing options...
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