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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

ETA 2442

manual wind

6''', Dm= 13.5mm, Do= 13.75mm
H= 3.2mm
F= 0.8mm
T= 1.6mm
17 jewels
f = 21600 A/h
power reserve 41h

Balance staff U2753

Stem W2771

Mainspring / battery
1.43 x 5.5 x 0.0625 x 201mm

1.00 x 0.50mm

Comments about the data

smallest ETA calibre
early fixed (Fig.1), later mobile stud carrier (Fig.3)
indirectly driven minute allows a very big balance

2440: 18000 A/h
2442: 21600 A/h

Example, year: signature; shock device
1-2) ca. 1960: 34, 17 Jewels - DWH (WH in D), Patented; Incabloc
3-4) ca. 1965: BP, Swiss, Swiss, 17 Jewels - Patented; Incabloc

© V06 G00 B02 U14 U16 K00 K02 K04 K09 A01 A10 A12 A14 L00 W01 W02 D01 H00 F00

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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