I believe this to be a very early Watertite with a very low serial number. As with all of my watches it runs very well and has been dis-assembled and cleaned and re-assembled and oiled. Hands need a relume and will get it when I have the time as I have about 50 hands to relume. Dial is in good shape and only need numerals relumed.
In reply to JP, is there nothing stamped by DarHin
As near as I can see, there is nothing on the case back and the number on the inside is just 479. I looked the back over with a 10 power loop and found nothing there. The 479 throws me off though because it is awfully low for a serial number for a 42 since they made these as far back as 1930.
Just another of the weird watches I seem to come up with. I am going to take it to a friend who has a microscope and see if there is anything I am missing. I will update you later.