Need springs for a Daneker W500 movement

by J. Riggsbee
(Durham, NC, USA)

I am working on a Daneker grandmother clock that is spring driven.

I need to replace all three springs and need the correct length, width and thickness of the springs.

The movement has the following information on the back plate:

W500

135073

75

F. Mauthe, Germany

I separated the numbers as they are separated on the black plate.