The Definitive Guide to Rolex AAARolex AAA
This motion has extremely reduced quality finishing. The hairpspring is mounted counter clockwise. Avoid this movement if possible. There may be also a no-date version of this motion known as the SH3130 (or in some cases the AR3130) and that is of similarly poor high quality.Be mindful if you are trying to order a substitute SH3285 motion from eBay