I use Swiss KubiK Masterbox winders. Compact, beautifully built and will run for years on batteries. Sometimes I even remember to switch them on.
The arguments for and against are anecdotal and it comes down to personal preference. If a movement will become prematurely knackered because it is kept in a winder, it's a pretty rubbish movement to start with. Given that we're talking Rolex, this is a moot point.
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