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View picture in original size
Fig. 1

Alpina 827SS (Rolex 710)

Features
manual wind
sweep second

Data
10.5''', Dm= 23.35mm
H= 4.7mm
(sub second: 3.85mm, winding gear +0.15mm)
15 jewels
f = 18000 A/h

Balance staff U2086 / U2211
spring collet: 0.4 / 0.55mm

Stem W2221 / W2354 / W2355
0.9 / 1.0 / 1.1mm

Mainspring / battery
Zf683, 1.20 x 9.5 x 0.11 x 290mm

Hands
1.30 x 0.88 x 0.18mm

Comments about the data

Remarks
1922- (Aegler)
bimetallic screw balance, Breguet hairspring
manufacturer: Aegler (Rolex)

family:
826: sweep second, open-face layout
827: sub second
827SS: sweep second, hunter layout

Example, year: signature; shock device
ca. 1950: Rolex, *Rolex*, Swiss Made, 15 Rubis; Super-Shock-Resist
(Rolex 710)

© J. zur Horst
CHRONOMETRIE ZUR HORST

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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