Seiko SNK805 vs. Vostok Amphibia: Best entry level Automatic Watch

Update 6/27/18: Prices for SNK are back to normal.
Seiko SNK805(Green on Amazon): https://amzn.to/2IwlLlT
Seiko SNK807(Blue on Amazon): https://amzn.to/2EmxOzy
Vostok: https://meranom.com/en/amphibian-classic/
Green Leather & Nylon watch band (on Amazon): https://amzn.to/2M39dED

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With the recent price increase of the Seiko SNKs, I thought it would be good to do a comparison review of the SNK, Currently, all of the SNKs (SNK803, SNK805, SNK807, SNK809) have gone up. With the black SNK809 to a much higher extent.
So I thought it would be good to compare a SNK to another great entry-level Automatic. So which is the better entry-level automatic watch? It's Seiko vs. Vostok, Field vs. Dive, and SNK vs Vostok.

Note: Some of the links above are affiliate links, I am an Amazon affiliate so I would earn a small commission on qualified purchases. But most of the time Amazon is just the best source to link something just to get a look. I always encourage you to shop around and find the best price.

In Addition, I'm also an affiliate with AVI-8, Armilla, Aliexpress, Spinnaker, eBay, Jomashop, and Phoibos.