Clock trademark and origin

[Darryn]

Hello Everyone 

My name is Darryn and I am in Zimbabwe. I’m a very big clock and watch enthusiast and enjoy repairing and collecting. I’ve recently come across this clock it’s 30cm high and diameter 9cm. It has TH on the back plate. I would like to know what trademark is that and the origin ? Please see pictures I’ve attached. Thank you very much and look forward to chatting to anyone who might be of assistance. Regards Darryn

[oldhippy]

Thank you for your introduction and welcome to this friendly forum.

These are what are called insert movements, before quarts movements came in you could buy them and most would have duration of 30 hours. Mostly made in Germany. These days they are only quarts movements. Here is a link so you can see for yourself they have different sizes so all you do is replace it with the correct size.

Looks like your clock is soapstone which is soft and prone to damage as I can see it has a nasty crack.  

You can repair them if they are not too worn, re-bushing is not recommended as the plates are very thin. The balance has conical pivots and are prone to become blunt. You will need a lathe to sharpen them using a small Arkansas stone and a little oil. Imagine a blunt pencil before sharpening and then after it has been sharpened. This will give it a very good action. Sometimes the cups wear in which case they need attention so a right size counter sink is needed.    

     

https://www.nationalartcraft.com/subcategory.asp?gid=2&cid=43&scid=1606

[Darryn]

Hello Oldhippy

Thank you very much for the information. The clock still works I’ll just need to give it a good clean. The metal work around the clock is quite good. Any idea the age of these insert movements and the value of this particular clock ? Once again many thanks. 

[oldhippy]

It's a job to say with these types of clocks. I've seen them on ebay for as little as £20 up to £100. The same with the date certainly after WW2 as Germany were to busy making stuff for the war. 

[watchweasol]

. Hi The makers mark indicates its by Thomas Haller (Germany)  trademark registerd in 1826.  with a pin lever escapement.   As OH said thin plates, single train. If the pivot holes are worn hard job to bush .  But never the less nice little clock and worth saving if at all possible.

[oldhippy]

Thanks watchweasol for confirming that the movement is German.  

[Darryn]

Thank you very much oldhippy and watchweasol for all the information. It is a nice clock. It’s always nice to know a clocks origin and age etc. Once again thank you.