Jaeger-LeCoultre

Are the bezel and alarm crowns rated for use underwater? From a practicality standpoint, as a diving watch, the bezel at least should be operable in wet conditions. Any info on this available?

I know about the overall rating of the watch and if indeed the crowns are operable under water, it would be amazing.

... I'm not an expert at all with regards to the Polaris, but I wouldn't operate any crown under water on any watch. Isn't an internal timing bezel a bit of a faux pas with any compressor watch?... e.g. you cannot operate under water.

And as for your thought about Compressor Cases and internal bezel, I tend to agree, but historicvally speaking, the olaris Vintage is in the same situation, as The LOngines Diver Vintage is, too... These anomalies or faux pas are so lovely..LOL There are ... 

that the the alarm crown must be pushed in to insure water-resistance. Apparently the bezel can be operated under water, as there is no warning as with the alarm crown in the text. Un saludo, Tony

used to time dive, you turn to needed spot BEFORE diving and then while diving it tells you time submerged... or well time left.. you dont wanna turn it under water, unless you found a spare tank while diving and wanted to increase dive time