The plug is clearly "inspired" by Amphenol plugs but the housing comes in two separate parts, which caught me off guard amidst the monotony of soldering and I had do redo the first plug ;P
The plug is sturdy enough, the housing seems pretty resilient to becoming loose on its own, the biggest flaw for me is the extremely flexible ground leg, the same problem as in Amphenol plugs, especially problematic with thicker cables which can rip the leg off when screwing the housing on.
Overall I wouldn't say it's a Neutrik competitor, in my opinion Neutriks are in a class of their own, Seetronics are decent plugs, much better strain relief and smarter looking than Rean, similar quality to Amphenol but for a third less.
I'd gladly buy them for a second time.