ETA 2892 - ringere i en DD 2073 løsning ?

[hannover_dk]

@makita
et par links mere. En PDF Gerhard L Brunners: - her heller ingen tvivl om 2892 og Eterna allerede side 1/2
http://www.watchbizz.com/archive/wt_2008...02_122.pdf

og her Rannft - som du måske finder fejl hos og det er der hos alle, men den her er god nok
http://www.ranfft.de/cgi-bin/bidfun-db.c...1197475253
Og hans tekst forklarer lidt det Peter Halse skrev om den kraftigere rotor i 2892A frem for de tidligere versioner, idet den mindre diameter i 2892 betød mindre effektiv rotor end Eterna 3000 - Hurtig læsning fra siden:
Up to Date
Eterna was the first to apply the ballbearing rotor and also the bidirectional winding with virtually no inertia. This last Eterna specific generation from 1975 was eccept the ball bearing already equivalent to the ETA 2892, which is even today still regarded as very thin. As the Eterna movement has a bigger diameter, it has space for a heavy rotor weight, and not the moderate winding efficiency known from the ETA 2892.

Og til slut (milde himmel må nogen tænke - men skal jo frem Walt Odet igen - som du jo selv bruger som ex.
http://forums.timezone.com/pdf.php?th=2290med klippet (fed skrift rækker):
The Eterna-Matic was introduced in 1948. For the first time, a ball-bearing was used to mount the rotor onto a movement with automatic winding.
Eterna continuously expanded its success in the mid to high range wristwatch industry. In his remarkable article "The A-B-C's of Watch Finish", Walt Odets writes: "Eterna, like Omega, was always known as a "high-value" watch, and the attention to important, functional finishing reveals why. In the context of
today's market, it represents the best of watches in the $1,000 to $3,000 range, and offers better quality than most ETA movements now being sold. It is probably representative of the best iterations of the caliber 2892. The Eterna 1424 is very similar in design and construction to current ETA automatics, most of which are dervied from Eterna designs

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