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It all depends on the type of crystal on your watch. My old 5513 is bidirectional. The newer combi Sub has the sapphire crystal thus unidirectional.
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The fun - '06 Carrera, '79 930, '06 S4 Avant, '16 i8
The mundane - '24 Tesla Model 3, '22 Tesla Model Y, '19 Tacoma
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