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Hi Bob,
I would've replied earlier, however have been away for a couple of weeks.
The 210, which I just checked for the condition I think you have descibed, operates as follows.
When the crown is unscrewed, it can initially, prior to the crown extending fully to wind, if you are still turning the crown in an anti-clockwise direction, does engage the mechanism and prodice the clicking sound as if you were winding the crown in reverse.
Not sure if I have explained this clearly, however the bottom line being the watch is performing correctly.
The 287 is fitted with Valjoux 7750 movement, modified and decorated for Panerai and does not exhibit the same condition when the crown is unscrewed.
The 210 of course has the venerable Unitas 6497.
Whilst both movements were manufactured under the ETA umbrella, their origins were different and actions too differ, being a manual versus an automatic.
Owning both a 287 and a 210, like you, purchasing the 287 and then the 210.
You have the bug, it's all good.
I also (very) recently had the opportunity to purchase a 141 Radiomir which is fitted with the Zenith Elite 680 movement and it is different again, in the crown, the number of turns it screws down and has a display back which is extensively decorated.
Enjoy the forum, we're here to help and share experiences. Welcome.
cheers
richard
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