Patek Philippe 9-90, Balance staff, no: 723

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  New Patek Philippe genuine part, not in factory packaging.

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  Fits cal: 9-90

Data Patek Philippe 9-90

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  18 jewels, hour, minute and seconds display.
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  S: = 26.20 x 18.70 mm.
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  H:= 3.65 mm.
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  N: = 19.800 A/h.
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  Power reserve:
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  Mainspring: 1.20 x 340 x 0.092