Hey Kallebumba,
I need to correct that previous email, it looks like I mistyped when I was answering your question. With the UW Technics Trigger, you would be able to shoot Manual or HSS with Backscatter strobes, not TTL. With the other specified strobes in the description area of the item further down the page, it does list the strobes that do have TTL support, but the Backscatter strobes only have support for Manual and High Speed Sync.
To specify, the Backscatter Sony Triggers would work with the a6000-series cameras, but there isn’t enough space in the Nauticam housing to use those triggers.