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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

Aurore-Villeret 423

manual wind
sub second

10.5''', Dm= 23.3mm, Do= 23.7mm
H= 2.8mm
F= 1.0mm
T= 1.4mm
17/21 jewels
f = 18000 A/h
power reserve 42h

Balance staff U2420

Stem W2592

Mainspring / battery
1.10 x 9.0 x 0.10mm

1.30 x 0.70mm

Comments about the data

later samples with varying combined setting for escapement wheel, and/or mobile stud carrier (Fig.3)
differences not known between 423-427, probably designations for varying bridge shapes (cf. Fig.1, 5)

423-427: 10.5'''
4200-4202, 4205-4207: 11.5'''

Example, year: signature; shock device
1-2) ca. 1955: - ; Incabloc
3-4) ca. 1965: Swiss Made, 17 Jewels; Incabloc
5-6) ca. 1960: Juvenia Mfg Swiss, 602, 17 Jewels; Incabloc
(Juvenia 602)

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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