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Fig. 1 Fig. 2 | [SIZE=+1]MST 12[/SIZE] Features stem wind and set sub second option: stoppable sweep second option: digital display second, minute, jumping hour Data 16''', Dm= 37.2mm 1 jewel f = 18000 A/h Balance staff Cyl. 0.94 x 4.75 x 1.18mm Comments about the data | Remarks open face calibre cylinder escapement ratchet on dial side, crown mechanism with rocker bar family: 12: open face 13: hunter Example, year: signature; shock device ca. 1930: Swiss Made - A, MST |
Golipo el calibre 12 MST que si está en Ranfft, se le parece mucho aunque no lo veo identico. Pero además quedaría por aclarar que significa la numeración que se entrevé y que el compañero estima como 340. MST si tiene el 340 pero no es circular.
Para comparar
Fig. 1
Fig. 2[SIZE=+1]MST 12[/SIZE]
Features
stem wind and set
sub second
option: stoppable sweep second
option: digital display second, minute, jumping hour
Data
16''', Dm= 37.2mm
1 jewel
f = 18000 A/h
Balance staff Cyl. 0.94 x 4.75 x 1.18mm
Comments about the dataRemarks
open face calibre
cylinder escapement
ratchet on dial side, crown mechanism with rocker bar
family:
12: open face
13: hunter
Example, year: signature; shock device
ca. 1930: Swiss Made - A, MST
Shelby, comprueba diametro del calibre sin contar la caja.