I love this part, apparently the more jewels in a movement the better it is. So this cheap russian movement is equivalent to the Rolex 3135
"Here is a comparison of the 2416b movement with other popular automatic movements used in the 150-7000 Euro price tiers:
Omega Planet Ocean 39 jewels (Swiss made) 6500 Euro
Rolex Submariner 31 jewels (Swiss made) 7000 Euro
2416b: 31 jewels (Russian made) used in the McManus Amphibia
Sellita SW200: 26 jewels (Swiss made) 600-1000+ Euro tier
ETA 2824-2: 25 jewels (Swiss made) 400-600 Euro tier
Seiko NH35A: 24 jewels (Japan made) 250-350 Euro tier
Miyota 9015: 24 jewels (Japan made) 150-250 Euro tier
So as you can see above, the Russian made 31 jewel movement in the McManus Amphibia has more jewels than excellent ETA and Sellita Swiss movements fitted to more expensive watches. When it comes to automatic movements, the more jewels the better. You are getting the same number of 31 jewels as a Rolex Submariner."