It is a kinetic watch, and has a 3 day power reserve.
Well your best bet is a more expensive replica.
Now, answering your question, why is this the best ?Simply because of the movement. A swiss movement, compared to Japanese Myiota is as close to the original as it gets and is very precise.One of the more noticeable differences between Swiss and Japanese quality is the mechanism itself.
Swiss quality watches are made with Swiss ETA movement and are actually made in Switzerland. They are identical to the original in every way.Japanese quality watches are made with Miyota movement. This mechanism can sometimes be less precise.Also all the features work accordingly & the strap is made of genuine leather.The glass is also sapphire crystal meaning it’s the exact same material used for genuine ones & is very durable.
A Swiss mechanism Panerai Luminor Marina 1950 is priced at around 680~ USD.
Hope you like the watch I picked, looking forward to your reply in the comments !