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View picture in original size
Fig. 1

EB 8107

Features
automatic
sweep second
date: set by changing 21-24h

Data
8.75''', Dm= 19.4mm
H= 5.5mm
21 jewels
f = 18000 A/h
power reserve 32h

Balance staff U3028

Stem W3024

Mainspring / battery
1.25 x 7.5 x 0.085mm

Hands
1.30 x 0.90mm

Comments about the data

Remarks
pin-lever escapement

family:
8.75''', automatic:
8100: sub second
8101: indirect sweep second
8103: direct sweep second
8104: sub second, date
8105: indirect sweep second., date
8107: direct sweep second, date
11.5''', automatic:
8120: sub second
8121: indirect sweep second
8123: direct sweep second
8124: sub second, date
8125: indirect sweep second., date
8127: direct sweep second, date
8.75''', manual wind:
8140: sub second
8141: indirect sweep second
8143: direct sweep second
8144: sub second, date
8145: indirect sweep second., date
8147: direct sweep second, date

Example, year: signature; shock device
ca. 1965: Swiss, 21 Jewels; Kif-Trior
(EB 8127, 11.5''')

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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