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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Junghans J47/1

Features
stem wind and set
sub second

Data
18.5''', Dm= 41.9mm, Do= 42.7mm
H= 5.25mm
F= 0.7mm
T= 2.4mm
7/15 jewels
f = 18000 A/h
power reserve 32h

Balance staff U410

Stem W294

Mainspring / battery
Zf3509, 2.00 x 17.0 x 0.21 x 500mm

Hands
1.82 x 1.15 x 0.27mm

Comments about the data

Remarks
open face calibre

family/generations:
old designation disregarding the grade:
47: old click with integrated spring
47G: new click with separate spring, since ca. No.20000
new designation indicating the grade, since ca. No.93000:
47a: 7 jewels, flat hairspring
47b: 15 jewels, flat hairspring
47c: 15 jewels, Breguet hairspring
47d: 15 jewels, Breguet hairspring, bimetallic balance
47e: 15 jewels, flat hairspring, without second, for blind persons watches
suffix /1: separate escape-wheel cock
The "G" for the new click appears also together with the new designation up to ca, No.106000.

Example, year: signature; shock device
ca. 1930: 18656, Alpina 209 - 33587

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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