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Fig. 1

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Fig. 2

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Fig. 3

Cortebert 270 (ETA 2451)

Features
automatic
sweep second

Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 5.3mm
F= 1.4mm
T= 1.85mm
21 jewels
f = 18000 A/h
power reserve 43h

Balance staff U2429

Stem W2426

Mainspring / battery
Zf853, 1.30 x 9.5 x 0.10 x 320mm

Hands
1.50 x 0.90 x 0.21mm

Comments about the data

Remarks
balance, barrel from Cortebert

family/generations:
266: manual wind
270: automatic
271: automatic, date
286: automatic, new date mechanism

Example, year: signature; shock device
ca. 1965: Cort.270, 21 Jewels, Swiss Made - WN, Patented; Incabloc

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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