Sorry I thought this was one which interfaced to a computer through the screen, ie, you run an app on the computer, enter your data, enter a transfer mode, then pulses on your screen upload data to the device.
So maybe this is a servo application. Looks like it only has six buttons. I have a microcontroller board which directly drives eight aeromodellng servos. I have a different board which interfaces to a raspberry pi through a serial interface. All the bits are there. Just code a sequence which will upload your data through the buttons.
Presumably the watch has a function to delete all data. The servos would start there then do a fresh load when the data changes.
Now I want one of these watches…
