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 Fig. 1  Fig. 2  Fig. 3 | Minerva 9 Features stem wind and set sub second Data 19''', Dm= 42.15mm, Do= 42.65mm H= 5.45mm F= 0.6mm T= 2.4mm 7/15 jewels f = 18000 A/h power reserve 39h Balance staff U1076 Stem W1575 / W1853 thread 1.6/1.2mm Mainspring / battery Zf3545, 2.05 x 17.0 x 0.20 x 520mm Hands 1.80 x 1.00 / 0.30mm Comments about the data | Remarks 1908- open face calibre options: bimetallic screw balance, Breguet hairspring differences not known between 9, 27 family/generations: 3: hunter or open face 9, 27: open face 9CH: chronograph, crown operated 10: chronograph, pusher operated 11: chronograph, split second Example, year: signature; shock device 1-2) 1925: 1338651, Minerva - 3, Minerva (RFV with arrow, Robert Frères, Villeret), Depose 1949: old data sheet 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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