For me, a braking grease is essential for the proper lubrication of the highly loaded contact area between the mainspring bridle (steel) and the barrel wall (brass or aluminum). Both in combination serve as a slipping clutch or „brake“ in an automatic watch. I always doubted the idea that braking grease can be used to prevent the bridle from premature slipping. After searching this forum and the net for some side-by-side testing of bridle/wall lubricants with no success, I decided to do the