This is an IKEA SKADIS mount for Green Cell VitalCharger battery charger. It's designed to put the charger upside down, it has a hole at the bottom for USB ports (USB-C and Micro USB). Status LEDs are visible. The box has larger tollerances for the charger, might add model with tighter tolerances later.

I was looking for SKADIS Pixel Watch charger mounts but couldn't find suitable one for the 1st gen watch. I wasn't sure if stands for newer models support first generation so I decieded to make one myself! Charging puck sits flat so the watch won't slide off when at an angle.