I have owned several late Soviet era Amphibias with the 2409 movement, all with the shielded back and 'antimagnetic' on the dial. All came from the Ukraine, from different sellers, as 'used but serviced and oiled'. All eventually suffered mechanical failure, but worked decently until then. I work in a shop environment where I often use strong magnets, so an antimagnetic watch is a must. Are the newly manufactured Amphibias antimagnetic, or would I be better served buying a new 2409 movement for each of my older watches?