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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1 | AHS 42(CLD) Features manual wind sweep second date Data 10.5''', Dm= 23.7mm, Do= 24.35mm H= 5.65mm F= 1.15mm T= 2.7mm 0/1 jewels f = 18000 A/h power-reserve 37h Balance staff U2512 (single roller) U3118 (double roller) Stem W2238 Mainspring / battery Zf1391, 1.70 x 9.0 x 0.12 x 240mm Hands 1.42 x 0.80 x 0.21mm Comments about the data | Remarks pin-lever escapement ratchet on dial side, crown mechanism with rocker bar balance versions: single roller, double roller The distance between balance bearings is adjusted either by the common screwed point bearing on the dial side (cf. AHS 40), or more sensitive and service-friendly by a screw bending the balance cock or -bridge (Fig.1). Late samples have a balance bridge instead of a cock, and are signed on the dial side as AHS 42. It is not yet known, which variants were made with this layout. Often a wrong or no calibre signature is present. family: 40: sub second, pointed staff 41: sub second, pivoted staff 42: sweep second, pointed staff 42(CLD): sweep second, date, pointed staff 43: sweep second, pivoted staff 43(CLD): sweep second, date, pivoted staff 44: no second, pointed staff 45: sub second, jewelled pointed staff 46: sweep second, jewelled pointed staff 47: no second, jewelled pointed staff 54: no second, date, pointed staff 56: sweep second, date, jewelled pointed staff Example, year: signature; shock device ca. 1960: AHS 43 (AHS 42, wrong signature) 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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