Pictures form part of description - 1930's Illinois wristwatch, cushion type case with ornamental engraving. Glass crystal. Blued steel hands. Good weight to the watch. 15J movement is running well, but I would advise a service at the buyer expense as I am unaware of the service history. 

30mm wide case
37mm lug tip to lug tip
9mm deep

I am not a horologist but will do my best to answer questions! Offers welcome.