Apparently All Operators Suppose to Have This "Watch" to Store Protorig

https://preview.redd.it/9581l24hpkjg1.png?width=1189&format=png&auto=webp&s=97541518810953f19337198780df4ffa55beac5e

So far I could find it in Team Z7, and some other operator's wrist like Xaihi

https://preview.redd.it/ji0xy2ydqkjg1.png?width=1539&format=png&auto=webp&s=14711edf6df187f78c67bc39bf34dda09b2edf44

https://preview.redd.it/1ftgjyigqkjg1.png?width=1524&format=png&auto=webp&s=dd318ba096a429c9873afd512ea7d89bfefc134f

But some other characters, but I can't seem to tell where they keep their stones on Chen Endfield and Wolfguard when their profile said they are part of the specialist tech division operator.

Just thought it might be interesting in the future to find these Protorig for future releasing ops. But they might just not add them for some operators because in the story when we first meet them they weren't part of Endfield yet?