This motion has quite minimal good quality ending. The hairpspring is mounted counter clockwise. Keep away from this motion if possible. There is also a no-day Model of this motion called the SH3130 (or occasionally the AR3130) and that is of similarly bad high-quality. The pic under is right here https://angeloqpwwt.verybigblog.com/32414021/the-definitive-guide-to-rolex-aaarolex-aaa