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 Fig. 1  Fig. 2 | Elgin 257 Features stem wind, switching by crown or lever sub second Data 16 size, Dm= 41.9mm, Do= 43.1mm H= 6.65mm (winding gear +0.15mm) F= 0.4mm T= 2.45mm 15 jewels f = 18000 A/h power reserve 34h Mainspring / battery 2.64 x 16.0 x 0.19 x 560mm Hands 1.65 x 0.92 / 0.25mm Comments about the data | Remarks 1899-1903, 5000 hunter calibre, model 6 bimetallic screw balance, Breguet hairspring negative stem mechanism in lever position setting switching between winding an setting is also possible with the stem family: hunter / open face (class) 151/157 (35/40): P, 7 jewels, gilded 152/158 (35/40): P, 15 jewels 153/159 (34/39): P, 17 jewels, Adj. 154/160 (33/38): P, 17 jewels, Adj. 155/161 (32/37): P, 17 jewels, Adj. 156/162 (36/41): B, 21 jewels, Adj., LE 185/186 (35/40): P, 15 jewels, gilded 210/211 (92/94): P, 7 jewels 212/213 (92/94): P, 7 jewels, gilded 220/221 (92/94): P, 15 jewels 241/244 (33/38): B, 17 jewels, Adj. 242/ - (33): B, 17 jewels, Adj. 243/246 (32/37): B, 17 jewels, Adj. 5 Pos. 247/248 (93/95): B, 15 jewels 257/258 (92/94): P, 15 jewels 290/291 (109/110): P, 7 jewels 292/293 (109/110): P, 7 jewels, gilded 299/300 (109/110): P, 15 jewels 305/306 (107/108): B, 15 jewels 312/313 (109/110): P, 15 jewels 337/338 (33/38): B, 17 jewels, Adj., GMW 339/340 (107/108): B, 17 jewels 365/366 (107/108): P, 15 jewels, gilded 381/382 (107/108): B, 17 jewels, Adj. 386/387 (109/110): P, 17 jewels, some gilded 397/398 (33/38): B, 17 jewels, dull - /594: P, 9 jewels, mat P: two section 3/4 plate B: bridges model names: GMW: G.M. Wheeler LE : Lord Elgin Example, year: signature; shock device 1902: 10011354, Elgin Natl Watch Co., U.S.A., Safety Pinion, 15 Jewels - X 11354 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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