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|Junghans 688.13 (Buren 12)|
automatic chronograph, 60s, 30min, 12h, cam switched
date: set by changing 21-24h
13.75''', Dm= 31mm
f = 21600 A/h
power reserve 42h
Balance staff U3426
Mainspring / battery
1.60 x 10.5 x 0.105mm
Comments about the data
joint development of Hamilton-Buren, Breitling and Heuer
module Dubois-Depraz 8510 on modified Buren 1281
crown at 9h
double excenter regulator for curb pins and stud carrier
indirectly driven minute allows a low profile
(details cf. Buren 1320)
Example, year: signature; shock device
1972: JRGK (J.R. Gorgerat, Kelek SA), Swiss, 17 Jewels; Incabloc
© N. Helfer
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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