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 Fig. 1 | Cortebert 620 Features stem wind and set sub second Data 16''', Dm= 36.0mm H= 3.6mm 17 jewels f = 18000 A/h Balance staff U938 Stem W1436 Mainspring / battery 2.00 x 13.5 x 0.14mm Hands 1.87 x 1.10mm Comments about the data | Remarks open face calibre Breguet hairspring differences not known between 616, 618 618 is probably a variant especially made for Rolex/Panerai family: 616, 618: open face, 16''', H= 4.7mm 617: hunter, 16''', H= 4.7mm 620: open face, 16''', H= 3.6mm 622: hunter, 16''', H= 3.6mm 624: open face, 17''', H= 3.6mm Example, year: signature; shock device ca. 1945: Rolex, Fab. Suisse, 17 Jewels (Rolex 5513, Cortebert 618, H=4.7mm) © 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. |
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