My Posts

Thanks John, I thought there was a pretty good chance of it being between 48 and 52. I tried to get this directly from JLC, but they would not give it to me. I agree with the approximately 6 degrees error for amplitude for every error of 1 deg for the lift angle; I did the math for this. Kevin

Hi, I recently purchased a timing machine for my watch collection and I was wondering if anyone here might know the lift angle for the 924 caliber contained in the JLC Master Calendar watch. My timing machine required an accurate lift angle as an input to calculate the amplitude of the balance wheel

Thanks for your suggestion; I decided to return it for a new replacement, but if it happens again I will probably try your suggestion first.

This shows the pictures of the cuff.

This is a picture of the U shaped arm that came loose. It came loose right where it goes into the hole of the winding box.

Hi, I have a EMTO wooden winding box that came with my 5140 and last weekend when I went to remove the watch from the winder, I discovered that the U shaped arm that secures the cuff to the winder had become loose from the spindle and was no longer rotating correctly. I was unable to determine how t

Thanks

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Actually, the caliber in the 47200 is based on the JLC 928 not the 938.

Another glaring error.