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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Alpina 833 (Rolex 250)

Features
manual wind

Data
6.25 x 10.5''', Dm= 14.0 x 23.5mm
H= 3.3mm
15 jewels
f = 18000 A/h
power reserve 30h

Stem W2779

Mainspring / battery
1.00 x 7.5 x 0.10 x 250mm

Hands
1.06 x 0.55mm

Comments about the data

Remarks
1922- (Aegler)
Alpina Gruen Gilde 1929-1937
bimetallic screw balance, Breguet hairspring
identical movements Alpina 833, Gruen 833, Rolex 250
manufacturer: Aegler (Rolex)

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. 1925: 1384072, Gruen Guild, Swiss, 4 Adjts., 15 Jewels - 4072, Patent +97101
(Gruen 833)

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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