X2 on the Deep Blue's.Tall order... Tritium is the most limiting factor. Try looking at Deep Blue's offerings, they may check most of your boxes, but not all.
If you can stretch your budget a bit you might want to look for a pre-owned Marathon GSAR for a quality rugged piece that meets all your requirements outside of price.
Ed,I may be looking for the impossible. Is there a auto with tritium hands and dial, sapphire crystal, water restant to at least 100m for around $200 or less? Is this asking for too much? Ed