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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1  Fig. 2  Fig. 3 | Frederic Piguet 21 Features manual wind Data 9''', Dm= 20.4mm, Do= 20.8mm H= 1.75mm (later 1.73mm) F= 0.3mm T= 0.8mm 17/18 jewels f = 18000 A/h (later 21600 A/h) power reserve 42h Balance staff U3304 Stem W3255 Hands 1.00 x 0.5mm Comments about the data | Remarks 1925- Since introduction in 1925 for many decades the thinnest movement, just in the recent years underscored by the Audemars Piguet 2003, slightly lower with 1.64mm. escapement wheel in Lubrifix 66, later Kif Duofix since about 1985 shock absorber Kif Ultraflex Example, year: signature; shock device 1-2) ca. 1960: Bucherer, Swiss, 3 Adj, 17 Jewels 3) ca. 1950: L.U. Chopard & Cie, Geneve, Swiss, 17 Jewels 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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