Impossible without a rigid container exposure system like a submarine. But as a thought experiment:
First off you need tanks that can hold greater pressure than 380 bars and a second stage capable to deliver 380 bars per breath,
that, in extension, means you uses 5*380 l air on each breath ( 1900 liter of air) on the bottom, that means ,when we take in account the depths of decostops and so on that you need to carry 20411037.9 liters of air, if you dive with tanks that can hold 450 bars that means you need to have access to 45357 liters of compressed air, lets say you dive this as a square profile with a bottom time of 5min, descend rate of 10 meter per min and an ascent rate of 9 meter per min, making the total dive time, excluding the insane deco stops, to a 13.45 hour dive. The decostops required for this theoretical dive is, according to v-planner, a total of 14856 hours ( 619 days ~ 1.7 years) whit a total of 980 deco stops, this is assuming you are using air, and nitrox 31 as deco gas. Of course you can't do this dive on air, to avoid oxygen toxicity syndrome, you need to dive with a mixture containing no more than 0.4% oxygen, and to avoid getting the king of all narc you need to have 0% nitrogen in your breathing gas leaving you whit a heliox mix of 0.4% o2 and 99.6% He, and my best guess is that breathing 99.6% He at 381 bars pressure opens up a whole new set of physiological effects. Of course this doesn't matter since, even if you can avoid oxtox and passing out from being super-narced, have OC equipment that can deliver the pressure needed and withstand the outer pressure of those depths, you will be killed either by the pressure of those depths or by one or more of the effects, from the long list of physiological effects you will encounter long before you even see the bottom, if you somehow survives all this, 1.7 years submerged in salt water is probably not good for you, even in a drysuit.