Crown doesn't immediately "pop out" when unscrewed?

[dannyp]

Noticed something interesting, though not necessarily odd: When I unscrew my Explorer crown, it doesn't "pop out" on its own when fully unscrewed. Instead, I have to turn it about a quarter turn clockwise (without applying any pressure, which would screw it back in) in order for it to "release" for setting/winding.

Is that by design? Just a quirk that "some do, some don't"? Some issue I should pay attention to?

FWIW, haven't noticed this on my OP.

[Tools]

The crown is a several piece marvel of engineering.

The base of the crown is a socket, and the top of the stem is a nut. When the spring loaded crown is released from the threads, it needs to not only "pop-up" to be used, but it needs to engage the flats of the nut on the stem end.

When you are turning it a bit, you are aligning the nut and socket, which, when aligned, allows the spring to pop it up.

[enjoythemusic]

Normal

[Driver8]

Originally Posted by Tools

The crown is a several piece marvel of engineering.

The base of the crown is a socket, and the top of the stem is a nut. When the spring loaded crown is released from the threads, it needs to not only "pop-up" to be used, but it needs to engage the flats of the nut on the stem end.

When you are turning it a bit, you are aligning the nut and socket, which, when aligned, allows the spring to pop it up.

I've always noticed this on most of the Rolex's I've owned, so I always assumed it was perfectly normal, but I never knew WHY.

Every day's a school day! Great info Larry.

[HiBoost]

Originally Posted by Tools

The crown is a several piece marvel of engineering.



The base of the crown is a socket, and the top of the stem is a nut. When the spring loaded crown is released from the threads, it needs to not only "pop-up" to be used, but it needs to engage the flats of the nut on the stem end.



When you are turning it a bit, you are aligning the nut and socket, which, when aligned, allows the spring to pop it up.

Very interesting, I have often wondered about this second level of "popping out". What you describe makes total sense but I'm having a hard time seeing where that socket and nut would be in these cutaways. Can you clue me in?

Edit: I think I see it now. The cutaway makes it less obvious but you can see a flat on the stem which I presume is one facet of the nut.





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