Service: Lemania calibre 3060

IMG_0965If it’s a Lemania, it has to be Anders’ watch! And so it is …

He’s sent it in for a service, so onto the timegrapher to see what it’s doing.IMG_0964

Yes, indeed. Low amplitude, large beat error, and too fast.

IMG_0966The movement does look clean, but there is no more oil left, and that explains the low amplitude. Note the little bridge with the two jewels holding the third wheel and the second pinion. Very nicely executed, so you press on the second hand without having to support the pinion from behind.

IMG_0967A very clean bottom plate in great condition.

IMG_0973I start taking the movement apart.IMG_0978

The keyless works have a bit of solidified grease and dirt on them, but it would be unusual not to find that.

IMG_0979

All the parts go into the cleaning machine.IMG_1204

With a new mainspring, I put the movement back together.IMG_1205

The balance back in and ticking. The regulator only sits on top of the hairspring and holds it from above, without a boot that has to be closed around the hairspring. Saves a bit of time when removing the cock to adjust the beat error.IMG_1206

Which is necessary. 4.3ms is a bit too much even for a collet adjusted movement.IMG_1207

So out comes the balance, and I slightly turn the collet. I previously marked the direction and angle on the watch paper.IMG_1208

And back onto the timegrapher.IMG_1209

Great amplitude, and I’m happy with a beat error of 2ms.IMG_1210

Now I can put the bottom plate back together. Note that the decoration and design looks exactly like on an Omega movement, and there are good reasons for that. A fair amount of Omega movements were developed by Lemania.IMG_1211

Dial and hands go back on.IMG_1212

The case didn’t have a gasket, so I put in a new one with a bit of silicone grease.IMG_1213And back together. The little white dirt spot is luckily on top of the crystal 😉

 

 

 

 

3 thoughts on “Service: Lemania calibre 3060

  1. Mmmm..lovely shine on those bridges! Looks like a really intelligently designed movement.

    It’s good to have some more articles, I was beginning to get worried! Hope everything’s well Christian.

    Sean

  2. This one is actually a very early “divers watch”. The caseback on this one shows the EPSA Super Compressor marks. The engraving 1-61 inside the case is actually the production month and date, so January 1961 the case was made by EPSA – Ervin Piquerez S.A in Switzerland.
    For those interested there are more info here:
    http://scubawatch.org/EPSA_SC_FAQ.html
    I do not intend to take it for a swim, and absolutely not for a dive!
    Looks great Christian!
    Thank you!

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