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  • Writer's pictureMarc Jenni

Spiky chain wheel

Updated: Feb 8

Location: Zurich, Switzerland

Date: October 7, 1994


Wear and tear of old and vintage timepieces call for appropriate care and handling. After all, they deserve a general overhaul after years, sometimes even centuries of loyal service to humanity...



Whilst one needs to visit a dentist for broken teeth, watch- and clockmakers around the world take care of defective wheels and pinions and sometimes replace tooth afer tooth for the well being of their respective patients.



The surgery in this particular case was necessary because the center hole was completely  out of center and dramatically enlarged. The chain inexorably plunged every time the wheight was raised up causing additional damage to the weight and teeth of the chain wheel.



With fitting this new and spiky chain wheel, the clock finally found a new youth and may face again other decades to come...

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