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date: quickset by repeated pulling the crown
11.5''', Dm= 26.0mm, Do= 26.65mm
(dial spacer +0.2mm)
f = 18000 A/h
power reserve 45h
Balance staff U3365
1.60 x 1.04 x 0.18mm
Comments about the data
*) The movement has 3 jewels to reduce the friction of the date disc on the base plate (Fig.3). These are ususlly not taken into account, and the movement is specified with 19 jewels.
Raketa combined settings for escape wheel
differences not known between R2628, 2628.H
2601.H: 19 jewels, without second
R2609: 17/19 jewels
2609.H: 17 jewels
2609.HA: 17/19 jewels
2610: 19 jewels, antimagnetic
R2614: 19 jewels, date
2614.H: 19 jewels, date
2623.H: 19 jewels, 24h display
R2628: 19 jewels, day, date
2628.H: 19 jewels, day, date
2627.H: 29 jewels, day, date
Example, year: signature; shock device
ca. 1980: 42557, Raketa, 2628.H, SU; Poljot
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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