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Fig. 1

View picture in original size
Fig. 2

Alpina 835SS (Rolex 210)

manual wind
sweep second

6.75 x 11''', Dm= 15.1 x 24.55mm
H= 4.2mm
15 jewels
f = 18000 A/h
power reserve 50h

Balance staff U2584

Stem W41

1.23 x 0.80mm

Comments about the data

1925- (Aegler)
Alpina Gruen Gilde 1929-1937
bimetallic screw balance, Breguet hairspring
identical movements: Alpina 835SS, Gruen 835SS, Rolex 210
manufacturer: Aegler (Rolex)

835: sub second
835SS: sweep second

Swiss Patent 97101:
design of the stem mechanism
filed 08-02-1921, Aegler S.A. Rolex Watch Co., Bienne (CH)

Example, year: signature; shock device
ca. 1930: 1740705, 835, Gruen Guild, 4 Adj., 15 Jewels, Swiss - 0705, Patent +97101
(Gruen 835SS)

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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