Hilfe bei der Identifizierung - bitte

Sorry, I'm an absolute IWC-beginner. I thought, this would be a multilingual
forum. So I try to translate.

I inheritated an old pocket clock, which is probably 100 years old.

1)

Here is the inner side of the back
lid:

You'll find the same signs on the inner side of the lid of the clockwerk (see
below) . Above the 0,800 you'll find upside down a handmade gravure „34723" .
At 2 O'clock: handmade gravure „3187 S."

Signs at the inner side of the clockwerk-lid:

Here is the clockwerk, numbered "406331".

I would be very grateful getting more information about this clock. Maybe for
the value too?

Many thanks in forward.

Thank you for your response. I've edited my text and I hope, you can give me
further informations.

Thank You for editing your post and supplying the additional information.

This is a very nice watch - Caliber 52 movement made in 1908 and cased in
1909. There are experts here that can tell you more about the particular
Hallmarks found in the case.......

We do not do valuations on this Forum, but with the above imformation you can
search the Web for comparable watches.