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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig. 5

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Fig. 6

AHO 126

Features
automatic
sweep second

Data
11.5''', Dm= 25.6mm, Do= 25.9mm
rotor revolution circle D= 28.7mm
H= 7.2mm
F= 1.6mm
T= 2.2mm
1 jewel
f = 18000 A/h
power reserve 33h

Balance staff U2129

Stem W2311

Mainspring / battery
1.40 x 9.0 x 0.10mm

Hands
1.52 x 0.96 x 0.20mm

Comments about the data

Remarks
excenter self-winding mechanism with just one gear stage
The automatic is a module, assembled on a polycarbonate bridge (Fig.3, 4). It is mounted on the just faintly modified manual-wind calibre (Fig.5. 6).
Likely there are also variants with up to 25 jewels, since all bearings are metal bushings, and the escapement jewels are substituted by according polished steel parts.

family/generations:
1021: 10.5''', manual wind
1022: 10.5''', manual wind, small date
1121: 11.5''', manual wind
1122: 11.5''', manual wind, small date
1123: 11.5''', automatic
1125: 11.5''', automatic, small date
1166: 11.5''', manual wind, normal date
96 : 12''', automatic
961: 12''', automatic, small date
966: 12''', automatic, normal date
126: 11.5''', automatic, ball bearing
suffix A: modified winding mechanism

Example, year: signature; shock device
ca. 1970: RA, 126, TWC, Mayfair Automatic, Bayer Pretzfelder & Mills Inc., Germany, 1 Jewel; Monorex

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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