I have 2 mid 1990’s Bulova Accutron automatics; one says Accutron on face and 50m on face and just water resistant on back, the other is identical in case design but says Bulova on face and Accutron on the back with only water resistant on the back just like the other. The winding stems are push type and identical,both have the date at the 6:00 positions, they have sapphire crystals and the backs have clear inserts showing the rotors and movements which appear identical,so my question is: are the both rated 50m water resistant like the one says? The Bulova one says Accutron on the back and the Accutron one does not. Weird isn’t it? Sorry no photos, camera messed up. Any assistance will be appreciated.