I read about differing grades of movements from Eta frequently. Is there a way to tell, say through a display back, what grade 7750 movement a watch has in it?
Thanks. I asked over there and have gotten - well snide would be the right word - or uninformed answers thus far. I was hoping that there is a way to tell and from your post it would appear that there is even if it is a bit technically demanding to know.Tough question, if you know the difference between an Etachron shock protection and an Incabloc shock protection, if you know the different look of a Glucydur balance in regards to a Ni balance you should tell..... TZ is a perfect place to investigate ;-) ;-)
That´s the way I´d take it:
The "ingredients" you mentioned for sure are what I´d call the "key components" of a "high grade" movement.
I sum it up:
Balance wheel: Glucydur vs Ni
Hairspring: Nivarox 1 versus Nivarox 2 or Anachron (ETA)
Mainspring and barrel material: Nivaflex NO vs Nivaflex NM
Shock protection: Etachron vs Incabloc vs KIF.
Incabloc is more expensive than the Etachron shock protection and belongs to the "top" and "chronometre" grades of ETA.
NIVACOURBE is a patented spring treatment by ETA. The open spring end is treated with heat in order to prevent deformation of the spring in case of a shock. This treatment is named:
ETA SA: "ETASTABLE"
Most of the Mecaline-ETA-movements can be ordered with ETASTABLE if you are willing to add some $$. Certainly a "high end module".
Nivarox 1 ist the best quality of Nivarox (1-5 is available). 0...0,5 sec deviation within 24 h on a change of temperature of 1º. I´ve to admit: very technical thing.
The movement you described imho must be a "Top" or "Chronometre" movement. Are we talking MIDO ?
Mike, again I have to say Danke for your throughful and informative posts to my often naive questions.Hi Robert,
Enjoy your watch !!