Radon 153.0352.3 Repair

Published: December 6, 2013
ETA 976.001 Movement inside a Radon 153.0352.3

ETA 976.001 Movement inside a Radon 153.0352.3

This Radon 153.0352.3 came to me for a battery exchange which I was able to perform as the customer waited. However, the watch didn’t come to life with its new 321 cell. I offered to service the movement for $50.00, and the customer was happy with the price.

The watch has an ETA 976.001 movement, which was quite dirty. The movement, however, is quality and the most common problems we experience with them are that they’re simply too dirty to run. I disassembled and cleaned/oiled the movement shortly after the customer left due to a cancelled appointment.

Front view of Radon 153.0352.3

Front view of Radon 153.0352.3

Upon reassembling it, I went to set the time and found a loose crown (the crown stem/crown with this movement are a TAP 9, while most of these movements use a TAP 10 stem) which I repaired by separating, adding a dab of red Loctite to the stem, and then firmly screwing the crown down.

I’m testing the watch over the weekend (bad weather in the area, and the customer can’t make it in today), but it is a fine woman’s watch with great visual appeal – I can understand why the customer chose to have it repaired, and I’m glad it was just a straightforward service with little material cost.

So, what could have gone wrong with this watch? It was pretty dirty when I opened it up. The customer didn’t want a full cleaning of the case, but I did remove dirt from around the seal. Had it been dirty enough that major damage had occurred, we would have replaced the movement. That would have added significant materials cost, and put the repair in the $130 range (due to material costs).