Odpisali 😐
We thank you for contacting us and for your interest in Longines watches.
In addition to the pictures you have sent us and to carry out a complete search, may we kindly ask you to send us some good and clear pictures of your watch (the inside of the case back and movement) ? More specifically, we would need to read properly the serial number that is engraved on the movement (dial side) and on the inner dome.
Please note that it would be necessary to have the watch opened by a watchmaker.
Waiting for your reply and thanking you in advance, we remain at your entire disposal for any additional information you may require.
W tzw. międzyczasie ustaliłem, że zegar został wyprodukowany pomiędzy 1906, a 1914 rokiem. Z dużym prawdopodobieństwem w 1911.