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 Fig. 1  Fig. 2 | Certina 25-661 Features manual wind sweep second date: set by changing 23-24h Data 11.5''', Dm= 25.6mm, Do= 26.0mm H= 4.3mm F= 2.0mm T= 2.7mm 17 jewels f = 19800 A/h power reserve 46h Balance staff U2822 Stem W2822 Mainspring / battery 1.20 x 10.0 x 0.12mm Hands 1.50 x 0.90 x 0.18mm Comments about the data | Remarks 1960-1975 choice between bevelled and plane date disc (cf. 25-651) family/generations: 19800 A/h: 25-65: automatic 25-651: automatic, date 25-652: automatic, day, date 25-66: manual wind 25-661: manual wind, date 28800 A/h, ball bearing for minute staff: 25-671: automatic, date 25-672: automatic, day, date 28800 A/h, ball bearing plate redesigned: 25-68: automatic 25-681: automatic, date 25-682: automatic, day, date Example, year: signature; shock device 1965: Certina, 25-661, Swiss, 17 Jewels; 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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