Something a little different...
Sept 8, 2018 13:13:22 GMT -8
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HiBeat, bundy, and 3 more like this
Post by leffemonster on Sept 8, 2018 13:13:22 GMT -8
One of the things about people knowing that you tinker with watches is that they sometimes dig up stuff for you to ‘have a look at’. Mrs Leffe was out for dinner the other night and returned home with one of these ‘something for you to have a look at’ items which belonged to the father of a friend of ours.
Basically non-running, but the movement looks pretty clean considering how grotty the case is.
Looks like a pretty generic Swiss movement, I’m guessing from some time in the ‘50s or early ‘60s, perhaps maybe even earlier?
Not knowing what it is, I’m flying blind with this one so take pictures at every stage of component removal. As is my usual method I remove the balance and pallet to allow any remaining power in the mainspring to unwind.
Removing the balance reveals some markings - ‘A’ and ‘120’. A quick search on the internet and it appears I’m working on an Arogno 120 movement - but that’s about all I can find out.
Pallet out next and the gear train starts whizzing round for a few seconds.
The barrel and train wheel bridge is secured by three screws - I’m surmising that the fourth screw holds the barrel in place.
Yep, the barrel is left when the bridge is removed. I’ll come to that later on. Time to look at the dial side.
I can see there’s a couple of springs lurking there that I’ll need to be careful don’t go flying. I remove the click assembly first and then move onto the keyless works.
So what’s under that gold-coloured plate?
I’ve worked on a few Swiss movements and it never ceases to amaze me how different they all are and how much they differ from, for example, SEIKO movements.
Something else that is different, and that I’ve never come across before, is the barrel - it isn’t fully enclosed, the mainspring is exposed on the dial side of the barrel. Very odd!
It’s quite a simple little movement really. I’ll give it a clean and pop it all back together and see if I can get it running. Parts for this are still readily available from Cousins, and they’re surprisingly cheap - almost every one is less than £6!
Basically non-running, but the movement looks pretty clean considering how grotty the case is.
Looks like a pretty generic Swiss movement, I’m guessing from some time in the ‘50s or early ‘60s, perhaps maybe even earlier?
Not knowing what it is, I’m flying blind with this one so take pictures at every stage of component removal. As is my usual method I remove the balance and pallet to allow any remaining power in the mainspring to unwind.
Removing the balance reveals some markings - ‘A’ and ‘120’. A quick search on the internet and it appears I’m working on an Arogno 120 movement - but that’s about all I can find out.
Pallet out next and the gear train starts whizzing round for a few seconds.
The barrel and train wheel bridge is secured by three screws - I’m surmising that the fourth screw holds the barrel in place.
Yep, the barrel is left when the bridge is removed. I’ll come to that later on. Time to look at the dial side.
I can see there’s a couple of springs lurking there that I’ll need to be careful don’t go flying. I remove the click assembly first and then move onto the keyless works.
So what’s under that gold-coloured plate?
I’ve worked on a few Swiss movements and it never ceases to amaze me how different they all are and how much they differ from, for example, SEIKO movements.
Something else that is different, and that I’ve never come across before, is the barrel - it isn’t fully enclosed, the mainspring is exposed on the dial side of the barrel. Very odd!
It’s quite a simple little movement really. I’ll give it a clean and pop it all back together and see if I can get it running. Parts for this are still readily available from Cousins, and they’re surprisingly cheap - almost every one is less than £6!