The Shimokita is a large transport with a submergible well deck that can accommodate air-cushioned landing craft.
From the nation.time.com
He said there was a problem with the flotation systems of the semi-submergible platform that led to a massive water leak in one area.
From the chron.com
The XtreaMP3 player from Finis is fully submergible and waterproof up to 15 feet, is shock-resistant, and plays up to 240 songs via 1GB of memory.
From the sltrib.com
The machine-translated text doesn't reveal how far under water the Zabady can go, but the pictures seem to indicate that it's more of shower-proof than submergible at any real depth.
From the techcrunch.com
More examples
Submersible: capable of being immersed in water or functioning while submerged; "a submersible pump"; "a submergible electric frying pan"