Still working on my prototype watch hand presser tool designed for installing hour, minute, seconds, and GMT hands.

This video demonstrates the installation of the hour and minute hands using the prototype.

The main idea behind this design is controlled hand installation height instead of only pressing the hands down. The press mechanism uses a threaded height-control system with approximately 0.5mm travel per full revolution, allowing very fine adjustment and repeatability.

Each press shaft is guided using double-layer brass bushings to reduce play and improve vertical alignment consistency during hand installation.

At the moment, the entire prototype structure is 3D printed using PETG-CF. The planned final version will use 6mm clear acrylic structural plates combined with PETG-CF connector and joint components.

I also wanted the design to remain compact and lightweight for users with limited workspace like myself, while still being easy to lift up to eye level for checking hand alignment and clearance.

I am still refining the design, but I would like to hear feedback from people who regularly install watch hands. 

Watch Hand Presser Prototype