The Mana-D5 Submersible was available during the Cold War between the Galactic Republic and the reconstituted Sith Empire. It was sold by Bakmar and Orloth on the Mercantile Plaza on Manaan.
Behind the scenes
The Mana-D5 Submersible first appeared in Star Wars: The Old Republic. Although it is a submersible, it is used a player speeder. Bakmar and Orloth both sell it on the Mercantile Plaza for twenty Manaan research data.