Eterna Rescue! Calibre 1448

P1160440A client has sent in this unusual black dialled Eterna calibre 1448, It was found in the bottom of a tool box at a car boot sale! The dial is covered in oil and it’s not running.

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The movement is in pretty bad condition. Everything metal has rust on it even the hairspring. We decided to get a donor movement!

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The dial is actually pretty good if we can clean off the layer of oil!

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Same goes for the date ring which is literally swimming in it…

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Lucky for us the dial survives being cleaned and looks great!

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We get a reasonably prices Eterna cal 1408U movement as a donor. It is the base movement of the 1448U that does not feature a date mechanism.

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The dial side is a little bit of a mess, the date advance pawl is missing, the setting lever, winding pinion and sliding pinion is rusted and setting lever spring is broken.

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Both the date mechanism and setting lever are the same as an automatic calibre 1424 and I happen to have one in my donor section. The winding and sliding pinion comes from the 1408 donor movement.

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Taking the movement apart I’m glad we have a donor. The only wheel we will use is the centre second wheel as it’s longer than on the 1408.  

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Old mainspring that will be replaced.

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All the parts being replaced!

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Movement cleaned and ready to be put back together.

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I fit a new mainspring in the barrel.

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I also replaced the complete balance assembly. I have fitted the shock protection jewels to see that the balance moves freely.

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The gear train going back in place.

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I start fitting the setting mechanism.

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I also find a date quick set pawl from my donor 1424 movement.

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The date retaining disk has a spring for the quick set pawl and tension lever. The old one has a broken spring and it’s easier just to replace the complete disk with a donor one. (Also from the 1424)

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We now have a working quick set date. I’m so happy with how the date disk cleaned up!

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Movement back together and ticking very well!

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Super performance.

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That looks much nicer in person.

I would love to wear that beauty!

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