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View picture in original size
Fig. 1

View picture in original size
Fig. 2

View picture in original size
Fig. 3

Seagull ST19 (ST1901)

Features
manual-wind chronograph, 60s, 30min, pillar wheel
sub second

Data
13.75''', Dm= 31.0mm, Do= 31.3mm
H= 5.85mm
(dial plate +0.4mm, Fig.3)
F= 0.5mmmm
T= 1.8mm
19 jewels
f = 21600 A/h
power-reserve 51h

Hands
1.40 x 0.95 x 0.28 / 0.29 x 0.25mm

Comments about the data

Remarks
1963-
The calibre is to wide extent a copy of the Venus 175, but it is only a rumor that it is produced with the according tools.
There are many variants with additional more or less useful features, which are not yet listed here, unless according samples become available.

family:
ST1901: bas calibre ST19
ST1902: 12h-hand at 6h, just current time
ST1903: 24h-hand at 6h, just current time
ST1905: power-reserve display at 4:30h
ST1906: power-reserve display at 6h
ST1907: central power-reserve display
ST1908: date at 12h, moon phase at 6h
ST1940: automatic

Example, year: signature; shock device
ca. 2010: - ; Seagull

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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