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 Fig. 1  Fig. 2 | Alpina 278 (Unitas 34) Features stem wind and set sub second Data 18.5''', Dm= 41.0mm, Do= 41.6mm H= 4.15mm F= 0.5mm T= 1.9mm 15 jewels f = 18000 A/h power reserve 33h Balance staff U1659 Stem W1418 Mainspring / battery Zf3030, 1.50 x 16.0 x 0.19 x 490mm Hands 2.00 x 1.15 / 0.26mm Comments about the data | Remarks hunter calibre attention: probably left handed ratchet-wheel screw differences not known between hunter 277, 278 family/generations: 273, 6525: open face, H= 5.3mm 273, 274: hunter, H= 5.3mm 277, 6521: open face, H= 4.15mm 277, 278: hunter, H= 4.15mm suffix A: meaning not known Example, year: signature; shock device ca. 1925: A, 273A - 330315 (Alpina 273A, H=5.3mm) 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. |
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