Bergeon No. 1104 Watchmakers Case Back Brush.  This product will aid with the cleaning of all watch case backs and case rims. It uses are limitless as the texture of the bristles can be Soft to very Hard.   First quality White bristle Wooden handle 4 Rows Heavy duty and robust Length 220 mm Bristle strength: No 0 - very stiff No 1 - stiff No 2 - semi-stiff No 3 - semi-soft No 4 - soft

Bergeon No. 1104