 
| Alpina 226 (Junghans J17)
Features stem wind and set sub second
Data 18.5''', Dm= 41.4mm H= 5mm (5.1mm with winding gear) 15 jewels f = 18000 A/h power reserve 36h
| Remarks hunter calibre monometalic screw balance, Breguet hairspring
Example, year: signature; shock device ca. 1925: 003683, Alpina, 226 - 3683
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