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 Fig. 1 | Durowe 451-3 (INT) Features manual wind sweep second day date: set by changing 21-24h Data 10.5''', Dm= 23.3mm, Do= 23.7mm 17/21 jewels f = 21600 A/h power reserve 40h Balance staff U3224 Stem W2404 / W2875 thread 1.1mm/0.9mm Mainspring / battery Zf943, 1.35 x 9.5 x 0.10 x 315mm Hands 1.50 x 0.90 x 0.22mm Comments about the data | Remarks 1968-1970 family/generations: 18000 A/h, sweep second 10.5''': 450 : - 450-1: 12h- and 24h display 450-2: date 450-3: day, date 21600 A/h, sweep second 10.5''': 451 : - 451-1: 12h- and 24h display 451-2: date 451-3: day, date 21600 A/h, sub second 11.5''': 470 : - 470-1: 12h- and 24h display 470-2: date 470-3: day, date 21600 A/h, sweep second 11.5''': 471 : - 471-1: 12h- and 24h display 471-2: date 471-3: day, date 471-4: minute stop feature Example, year: signature; shock device ca. 1965: 17 Jewels; Duro-Swing (Durowe 450, 18000A/h) 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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