The basic model was called Sea Land Splash Twin with its technical characteristics as shown in the sheet in this website. It was known thanks to James Bond. Then, they decided to make it more performant with regards to its autonomy, transforming it in a micro-rebreather recalled Eoba - enriched oxygen breathing apparatus. In the below image you can see its functioning diagram, with the two corrugated hoses around the diver’s head which contain the soda lime filter placed behind the neck. In the front, there is the system to avoid Co2 recycle and the valve to discharge the eventual water inside the hoses; between the two tanks, there is an instrument indicating the residual tank pressure. Nice but probably, James Bond’s experience with the open circuit was enough therefore, this project remained in the drawer’s dreams of its designer.
The Eoba micro-rebreather