Longines 633-2543, Calendar intermediate wheel

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  N.O.S. Longines original part in factory sealed packaging.

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  Fits Longines cal: 633.1, 633.2, 634.1, 634.2

Data: Longines 633.1 (Base caliber: ETA 2824)

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  25 jewels, automatic wind, center second, hack feature.
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  Size: 11,5''' 25,60 mm.
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  H: = 4.60 mm.
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  N: = 28.800 A/h.
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  Power reserve: 40 h.

Versions, suffix 1 = 25 jewels, 2 = 17 jewels.

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  631: without second.
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  632: center second, hack feature.
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  633: center second, hack feature, date.
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  634: without second.
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  636: center second, hack feature, day, date.