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Patek Philippe

Winding a Lemania 2320 based Patek Chronograph

 

What does Patek recommend about winding a Lemania 2320 based PP chrono movements (like in in 5970, 5070, 3970, etc):

(1) wind "up" only until fully wound. 
(2) wind "up" only until fully wound and at then wind "down" 3-5 times.
(3) wind in "up-down" cycles always until fully wound.

What would be the reason for (2) or (3) ?

Thanks!

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