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 Fig. 1  Fig. 2  Fig. 3 | Revue 54 Features manual wind sub second Data 9 x 12.5''', Dm= 20.0 x 28.0mm Do= 20.6 x 28.0mm H= 4.0mm F= 0.5mm T= 1.5mm 15 jewels f = 18000 A/h power reserve 36h Balance staff U758 Stem W757 Mainspring / battery Zf704, 1.20 x 12.0 x 0.13 x 390mm Hands 1.45 x 0.81 / 0.20mm Comments about the data | Remarks 1928- pattern for the space-efficiancy movement Urofa 58 indirect sub second shock protection by elastic pivots (Bild 3): Top: The steady transition from the pivot to the rather thin end of the staff inhibits beaking at this spot. Bottom: On a conventional staff the sudden transition from the pivot to the thick arbor end enhances the danger of breaking at this spot. Example, year: signature; shock device ca. 1940: Revue, G.T, 54 - GT (Gédéon Thommen); Revue-Thommen 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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