Well dear Anonimists, you need this :
01 Aluminum Case Holder ( Multi purpose for watchmaker, jeweler, hobby or engineering )
02 Secrew drivers 1.8 mm. ( It Is custom made to fit the screw head size which is 1.9 mm. horizontally, so the 1.8 mm can't cause damage to the case... but you can find it anywhere is a common size )
The case holder fit very well any Anonimo Timepiece, you don't need to use it like for other watches that fit entirely into the four pins, you only need to place the bezel then tighten.
The four plastic hard pins will not scratch the crystal or the case.
See the video below to a better idea :