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option: sub second
7''', Dm= 16.0mm, Do= 16.4mm
f = 21600 A/h
power reserve 40h
Balance staff U3078 / U3089
roller 0.37 / 0.32mm
1.00 x 0.46 / 0.15mm
Comments about the data
1600: no shock protection
1601: with shock protection
suffix A: uncertain, either bevelled bridges or 18th jewel for minute wheel (differing from signature)
Example, year: signature; shock device
ca. 1985: 4887289, 1601A, 17 Jewels; Aera-Slava
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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