AP Diver: Adjusting the bezel under water...

[acarriles]

Hi all, while researching about the AP Diver before buying it, one thing that came up time after time, review after review, was that it was not such a "good diving watch" as you could not adjust the timing bezel underwater, due to the fact that it would involve unscrewing the 10 O'clock crown, and that would let water in the case. I'm sure you've heard that before...

BUT, guess what I just found on the AP documentation? See below:



So, I guess that it means that you CAN adjust safely the timing bezel under water! The question now is, who wants to try it out first?


P.S. If you still think this is incorrect, here is the original link to AP (BTW, the whole document is really interesting...):

http://www.audemarspiguet.com/s/care-book/en/#/22/

[srvrf]

Im not a diver but I thought the whole reason for this would be to set the bezel and lock it in place so you always know absolutely how long you have air. With the screw down crown it wouldn't move. Why would you want to change it mid-dive?


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[acarriles]

Originally Posted by srvrf

Im not a diver but I thought the whole reason for this would be to set the bezel and lock it in place so you always know absolutely how long you have air. With the screw down crown it wouldn't move. Why would you want to change it mid-dive?


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Not mid dive, but you may get in the water, and start your timing when you are really starting to use the tanks. I've gone diving on a cruise, and by the time all the participants are in the water and ready to go it could be several minutes that you may cut short your dive thinking the time is up... Or you forgot to set it up just before jumping in, you can still adjust the time and go from there.

I just thought that it didn't make sense not being able to open the crown once you were in the water.

[Hairdude1]

Good info, is someone going to try this now?

[Brian Page]

Originally Posted by acarriles

Not mid dive, but you may get in the water, and start your timing when you are really starting to use the tanks. I've gone diving on a cruise, and by the time all the participants are in the water and ready to go it could be several minutes that you may cut short your dive thinking the time is up... Or you forgot to set it up just before jumping in, you can still adjust the time and go from there.

I just thought that it didn't make sense not being able to open the crown once you were in the water.

This - and I will be testing it in MX in 4 weeks!

[beer]

well if the documentation that came with a particular says it is ok, and it does leak, they would have to replace the watch if it was under normal warranty

so if anyone has a new diver, would be pretty safe to test

[mfer]

I absolutely thought you were supposed to set the bezel while underwater. I thought one of the major uses was as you were ascending from a deep dive, you have to take xx minute breaks at various depths so you don't get the bends (decompression sickness).

from a scuba website I googled:
As a diver ascends, the nitrogen that is stored in the blood tissue, is slowly released and is exhaled but if you have broken the dive planner time limits, you’d be required to do a decompression stop at 5 metres for a period of time determined by how long you have over stayed underwater. This will allow any excess nitrogen to leave your body before returning to the surface.

[acarriles]

Originally Posted by beer

well if the documentation that came with a particular says it is ok, and it does leak, they would have to replace the watch if it was under normal warranty

so if anyone has a new diver, would be pretty safe to test

AFAIK there aren't any other AP "diving models" that have a "crown that operates the rotating bezel". Other than the Scuba (which is not even ISO certified as a diving watch), to which other model could this reference in the AT Care Book could be referring to?

[Snow-Dweller]

Originally Posted by acarriles

AFAIK there aren't any other AP "diving models" that have a "crown that operates the rotating bezel". Other than the Scuba (which is not even ISO certified as a diving watch), to which other model could this reference in the AT Care Book could be referring to?

SS, FC and Ceramic?....just guessing.

[Brian Page]

Originally Posted by mfer

I absolutely thought you were supposed to set the bezel while underwater. I thought one of the major uses was as you were ascending from a deep dive, you have to take xx minute breaks at various depths so you don't get the bends (decompression sickness).

from a scuba website I googled:
As a diver ascends, the nitrogen that is stored in the blood tissue, is slowly released and is exhaled but if you have broken the dive planner time limits, you’d be required to do a decompression stop at 5 metres for a period of time determined by how long you have over stayed underwater. This will allow any excess nitrogen to leave your body before returning to the surface.

Yes, you could time a deep stop like this but a more common modern practive would be using a dive computer. I wear a computer on my right wrist and my dive watch on my left. When I start going down is when I set my dive watch to time the dive. So, I'm in the water when I'm adjusting the bezel.

[Abdullasaif]

Still won't try it

[jschmidtdmd]

I don't think i'll be trying it either ;)

[endo]

Originally Posted by Clivek

SS, FC and Ceramic?....just guessing.

Yup, those are all ISO certified, technically the couldnt be called "diver's" watches if they weren't
"Water-resistant to 300 metres as well as pressure resistant, the Royal Oak Offshore Diver is an authentic nihs 92-11 and iso 6425 certified diver’s instrument."






Although, back on topic, there's a bit of conflict information from AP as the owners manual states.

"The markings on the rotating bezel can measure
a lapse of up to 60 minutes. Detailed markings
for each of the first 15 minutes can be used to
measure surfacing time and decompression stops to
the nearest minute.
Carefully screw the crown back to position E to
ensure water resistance"

Not sure, i want to be the one to test if you can turn the bezel underwater.

[jjnd08]

Looks like someone needs to call AP...

[acarriles]

No need... Just read the last paragraph below:

To adjust this dive-time indicator, the Audemars Piguet watchmakers have developed a mechanism enabling it to be controlled via a watertight external crown positioned at 10 o’clock along the side of the case middle. This system as a whole represents a significant safety feature since, once the crown has been screwed back in, the dive time cannot be inadvertently modified. Equipped with a system of innovative water-tightness gaskets, it may be handled during immersion.


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[masterserg]

Originally Posted by srvrf

Im not a diver but I thought the whole reason for this would be to set the bezel and lock it in place so you always know absolutely how long you have air. With the screw down crown it wouldn't move. Why would you want to change it mid-dive?


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It is used to time bottom times and deco stops (according to your dive plan). Air times would vary wildly depending on several factors such as depth, how agitated you are and so on ... Technically, you plan your dive, stick to it (dive your plan) and all is good ... that's why you need to measure times (how long you stay at different depths, how long do you need to stop for decompression, etc.) ... so you would need to adjust under water. As many said, I am not sure I would do this with the AP Diver ...

In reality, you just use a dive computer (I do anyway).

It is pretty nice to time pasta though :)