AS 970, Balance, complete, no: 721N

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  NOS original part.

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  N: = 18000 A/h.

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  Fits cal: 970, 1156, 1556

Data:

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  15/17 jewels, manual wind.
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  Size: 8,75''' 19,4 mm.
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  H: = 3,45 mm.
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  N: = 18000 A/h.
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  Power reserve: 45 h.

Versions of AS 970:

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  970: 8,75''' N=18000, flat plate and bridges.
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  1156: 8,75''' N= 18000, no mounting flange, bevelled edges.
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  1556: 8,75''' N= 18000, bevelled edges.
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  1726: 8,75''' N= 21600, flat plate and bridges.
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  1727: 8,75''' N= 21600, no mounting flange, bevelled edges.
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  1828: 8,75''' N= 21600, bevelled edges.