El calibre del Cyma podria ser este ó alguno de su familia.
[TABLE="width: 100%"]
[TR="bgcolor: #F8C8C8"]
[TD="width: 250"]
Fig. 1
Fig. 2
[/TD]
[TD="bgcolor: #FFD2D2"][SIZE=+1]
Cyma 19'''B[/SIZE]
Features
stem wind and set
sub second
Data
19''', Dm= 41.85mm
H= 5.35mm
8/15 jewels
f = 18000 A/h
power reserve 38h
Balance staff U252
Stem W255
Mainspring / battery
1.95 x 17.0 x 0.23mm
Hands
1.76 x 1.10 / 0.28mm
Comments about the data[/TD]
[TD="width: 40%"]
Remarks
open-face calibre
Breguet hairspring
8 jewels variant with steel pallets and -impulse pin
family/generations:
old designation / hunter / open face respectively
normal stem mechanism:
19'''B / 914 / 915: just separate cock for escape wheel
19'''2B / 920 / 921: 1 bridge, 2 cocks for train
19'''5B / 950 / 951: 1 bridge for train
19'''7 / 970 / 971: just separate cock for escape wheel
19'''9B / 990 / 991: 1 cock for train, except center wheel
19'''10B / 900 / 901: 1 bridge, 2 cocks for train, excape-wheel cock modified
negative stem mechanism:
19'''1B / 910 / 911: 1 bridge, 2 cocks for train
19'''3B / 930 / 931: 2 cocks for train
940 / 941 (Cyma 19'''4B): 1 bridge for train
19'''6B / 960 / 961: 1 cock for train
Example, year: signature; shock device
1910: Brevets+, Cyma - 4561584
(8 jewels)[/TD]
[/TR]
[/TABLE]