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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig. 5

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Fig. 6

Eterna 1402U

sweep second

7.75''', Dm= 17.2mm, Do= 17.5mm
H= 5.25mm
F= 1.0mm
T= 2.0mm
17/21 jewels
f = 18000 A/h
power reserve 43h

Balance staff U2190

Stem W2331

Mainspring / battery
Zf831, 1.30 x 7.0 x 0.08 x 220mm

1.20 x 0.70 x 0.18mm

Comments about the data

early fixed, later mobile stud carrier (cf. Fig.1, 4)
different rotor shapes during production periode, cf. also other calibres of the family

1401: 7.25''', automatic
1402: 7.75''', automatic
1403: 8.35''', automatic
1405: 7.75''', manual wind
1441: 7.75''', automatic, date
1444: 8.25''', automatic, date

Example, year: signature; shock device
1-3) 1956: 3965224, Eterna-Matic, Brevete - Patented; Eterna-U
4-6) 1956: 3986367, Eterna-Matic, Brevete - Patented; Eterna-U

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft

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