As (I think) the sole watchmaker on this forum, I’m somewhat surprised that you went to all that trouble to get this type of finish. This same type of finish, which watchmakers call a non reflective brush finish is done by a wide variety of methods in watch making. In production, one of the favorite methods is sand blasting using glass beads. You can get a very wide variation in the softness of your finish. But for single one off work, there are a wide variety of synthetic brushes for buffing machines made by 3M (and some Swiss copy cats) for doing the same type of finish that use a plastic type material for the actual brush, rather than metal. It gives a much softer looking finish that a metal brush. These brushes come in a wide variety of sizes. For watches, I use a 6 cm diameter mounted on my buffing machine. With a variable speed buff, you can get an even wider variety of finishes, and then depending on your lubricant, you can vary the finish even more. Three lubricants I’ve used to good effect are sewing machine oil, water and dish washing detergent and straight dish washing detergent. Special tape is also available from watch parts supply houses for masking areas that you don’t want to buff over.