Tudor Sport Aeronaut

[hannover_dk]

morten b Skrev:ETA 2892

Kort sagt står der, at "Top" grade er bedre justeret end de almindelige 2892....

- Morten

Kort sagt ja - men der er nu også anvendt forskellige metaller og coatings i væsentlige dele - som gør en værksmæssig forskel - lidt nørdet men giver vel mening - Forklaringen om adjustments i Wilkepeter citatet mener jeg heller ikke er korrekt. Det her er med 99,9% sikkerhed korrekt opsamlet:

¨Standard and Elaboré:
Mainspring - Nivaflex NO
Shock protection - Etachocs
Pallet stones - Polyrubies, Epilame-coated
Balance - Nickel gilt
Balance staff - Epilame coated
Collet - Nivatronic
Hairspring - Nivarox 2
Hairspring heat treatment - Etastable

Top and Chronometre:
Mainspring - NivaflexNM
Shock protection - Incabloc
Pallet stones - Red rubies, Epilame-coated
Balance - Glucydur gilt
Balance staff - Epilame coated
Collet - Nivatronic
Hairspring - Anachron
Hairspring heat treatment - Etastable

The performance differences are the big differences between the various grades: ("The limit values are subject to interpretation: 95% of the pieces delivered in a lot must be within the specified limits.")

Standard:
2 positions (CH, 6H)
daily rate: +/-12 sec/day
Maximum positional variation: 30 sec
Isochronism (between 0 and 24 hours): +/- 20 sec

Elaboré:
3 positions (CH, 6H, 9H)
daily rate: +/-7 sec/day
Maximum positional variation: 20 sec
Isochronism (between 0 and 24 hours): +/- 15 sec

Top:
5 positions (CH, FH, 6H, 9H, 3H)
daily rate: +/-4 sec/day
Maximum positional variation: 15 sec
Isochronism (between 0 and 24 hours): +/- 10 sec

Chronometre:
As per COSC specifications, which as far as most owners will notice, isn't much different from Top grade.
For COSC see: <!-- w --><a class="postlink" href="http://www.cosc.ch" onclick="window.open(this.href);return false;">www.cosc.ch</a><!-- w --> OG MIN BEMÆRKNING til det sidste er, at chronometer ETA 2892 er helt samme på alle måder som TOP . blot er den sendt til COSC og der er betalt for for det.

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