Hi there,
This is Bogdan from Romania.
I'm a mechanical engineer - specialized in the industrial robotic field, 3D designer, industrial designer and, 3D modeler.
For some of my projects, I'm also doing the physical prototype too.
I'm doing product design, industrial design, reverse engineering, ideation, etc.
I have over 15 years of experience working on various systems/devices across multiple industries, from concept to launch.
1 - i've designed for an australian client a personal beacon (in australia, all the divers are obliged to wear such beacon for emergency situations)
2 - you will need two engineers for this device - a mechanical one (which could be me) to design the enclosure with the proper sealing and protection for the buttons and electronics, and an elctronic engineer which to design or modify an existing board for connecting with the other watch or another base.
i could provide indications on how the short range gps module should be designed and integrated :)
For any more questions, we could chat here, including the whole details of the project, final price, time frame, deliverables, etc, etc...
Regards
Bogdan