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View picture in original size
Fig. 1

Eterna 1457U

Features
automatic
sweep second
day
date: quickset by repeated pulling the crown

Data
13''', Dm= 29.0mm
H= 4.15mm
(ball bearing +0.05mm)
21 jewels
f = 18000 A/h
power reserve 44h

Balance staff U2958

Stem W2947

Mainspring / battery
1.10 x 10.0 x 0.10mm

Hands
1.50 x 0.90 x 0.20mm

Comments about the data

Remarks
1962-
Eterna-U shock protection
for technical details cf. ETA 2892

family:
1455: 18000A/h, 12.5'''
1456: 18000A/h, 13'''
1457: 18000A/h, 13''' day, date
1465: 18000A/h, 12.5''' date
1466: 18000A/h, 13''' date
1500: 21600A/h, 13''' date
1501: 21600A/h, 13''' day, date
1504: 28800A/h, 13''' date

Example, year: signature; shock device
1966: 6068639, Eterna-Matic, Brevete, Swiss, 21 Rubis - Patented; Kif Ultraflex
(Eterna 1500K, 21600A/h)

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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