Overhauling of a Free sprung, keyless fusee made by Walsh

I am in the process of overhauling a Free sprung, keyless fusee made by Walsh for S. Hammond & Co. Pocket watch. It has a Duo-in-uno hairspring which is a combination of Helical and spiral. It has a "up down" indicator and sub seconds. It also has a disconnect mechanism which disengages the winding when the bezel is closed. The case is 18k. I will put more pictures of the project as I clean and reassemble it and then more of the finished watch