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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1 | Durowe 7522 (INT) Features automatic sweep second date: set by changing 20:30-24h Data 11.5''', Dm= 25.6mm, Do= 26.0mm H= 5.3mm F= 1.1mm T= 1.9mm 21/25 jewels f = 21600 A/h power reserve 38h Balance staff U3224 Stem W3278 Mainspring / battery 1.30 x 9.5 x 0.105mm Hands 1.50 x 0.90 x 0.21mm Comments about the data | Remarks 1972- in first samples separate click and click-spring (Fig.1) later single-part click (cf. Durowe 7420) family/generations: 10.5''' manual wind: 7410: - 7411: 24h hand 7412: date 11.5''' manual/automatic respectively: 7420/7520: - 7421/7521: 24h hand 7422/7522: date 7423/7523: day, date 7424/7524: minute stop feature 7425/7525: date quickset 7426/7526: day, date quickset 7427/7527: day at 9h, date quickset 7428/7528: date, month calendar, quickset - /7539: date, digital 7430...7438 like 7420...7428, but jumping second 7530...7538 like 7520...7528, but jumping second suffix /1: modification quickset date suffix /2: minor modifications suffix /3: modification click spring Example, year: signature; shock device 1972: Duromat, 21600, 25 Jewels; Incabloc (Durowe 7524) 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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