Service Lemania calibre: 2510

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I got this amazing Lemania as a running project. The chronograph function does not engage when started. I hope a good service will sort out the issue.

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The movement is in great condition.

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The nicer the dial the more nerve it takes to remove the hands;)

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It is easier to remove the pushers before taking the movement out of the case.

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I start on the dial side of the plate removing the hour recorder mechanism.

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Here you can see the hour recorder runner and the reset lever. Both located under it’s own bridge.

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I now flip the movement over and start taking apart the upper chronograph level.

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It is good to take plenty of photos when taking a movement apart with this many parts.

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Easy does it, almost down to the base movement now.

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Down to the base movement.

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I now remove the setting mechanism.

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Almost there.

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Here you can see the gear train layout.

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The old mainspring before taking it out of the barrel.

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After cleaning the movement I fit the balance jewels and check that the balance moves freely.

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New mainspring fitted in the barrel.

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The crown wheel is located under the train-bridge.

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The gear train goes back in without any problems.

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When putting the  balance back in place the movement starts ticking straight away.

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Part after part the movement comes back together.

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Top chronograph layer back in place, looking great.

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I now fit the movement into the case and make sure the chronograph function starts, stops and resets like it should.

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The old luminous compound looked like mouse droppings and I do not want it falling off and finding it’s way into the movement. So here I’m replacing it with yellow compound.

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Dial and hands back on the movement.

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Now that is a beauty!

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I’m happy with the performance.

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Now I can time my work;)

 

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