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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1  Fig. 2  Fig. 3  Fig. 4  Fig. 5 | ETA 2391 Features manual wind sweep second Data 11.5''', Dm= 25.6mm, Do= 26.0mm H= 3.6mm F= 1.4mm T= 1.85mm 17/21 jewels f = 18000 A/h power reserve 47h Balance staff U2226 / U3136 for balance with/without screws Stem W2426, W3226 Mainspring / battery Zf873, 1.30 x 10.0 x 0.11 x 320mm Hands 1.50 x 0.90 x 0.21mm Comments about the data | Remarks early fixed (Fig.3), later mobile stud carrier (Fig.1, 4) differences not known between 2391, 2393, 2395, 2397, 2399, 2401, 2403, 2405 family: 2390: manual wind, 10.5''' 2391: manual wind 2406: manual wind, date 2408: manual, new date mechanism 2450: automatic, 10.5''' 2451: automatic 2452: automatic, date 2453: like 2451, but single-material rotor 2454: like 2452, but single-material rotor 2456: automatic, date, 10.5''' 2471: automatic, prepared for new date 2472: automatic, new date mechanism Example, year: signature; shock device 1-2) ca. 1960: Silvana, Swiss Made, 17 Jewels - DH, Patented; Incabloc 3) ca. 1955: Swiss, Suter SU 2391, 17 Jewels; Incabloc 4-5) ca. 1965: DH, Swiss Made, 17 Jewels - Patented; Incabloc 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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