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21 October 2019, 02:49 AM | #1 |
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When can water enter the watch?
I gave my DJ41 a good wash last night with dawn soap and put away in my case. I pulled it out an hour later to wear and wind up and noticed my crown was not screwed down tight. I am usually pretty good about this.
Is there a chance water or soap particles entered through the crown area? Kind of concerned here. Thanks. |
21 October 2019, 03:15 AM | #2 |
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No.
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21 October 2019, 03:25 AM | #3 |
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Not likely. If you don’t see condensation on the inside of the crystal you should be fine.
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21 October 2019, 03:27 AM | #4 |
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21 October 2019, 03:34 AM | #5 |
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Yes it is sealed - nothing to worry about.
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21 October 2019, 03:35 AM | #6 |
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Your DJ has the twin lock crown. There is a gasket inside the crown tube besides the one you see when you pull the crown out. That gasket is under compression. With your DJ being a newer watch the gasket should be in good shape so I think you’re okay.
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21 October 2019, 03:42 AM | #7 |
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Okay, I was not aware of the construction of this. When would a watch risk water damage under normal washing conditions?
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21 October 2019, 03:46 AM | #8 |
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I think so. Some forum members say that if the watch is rated to say 100m, it is resistant to that water pressure or whatever even with the crown unscrewed Supposedly the screwing of the crown is only to prevent operation of it under water Like the chronograph pushers on a Daytona |
21 October 2019, 04:10 AM | #9 |
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21 October 2019, 04:12 AM | #10 | |
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Quote:
There is no time, under normal conditions, where your watch is open to the environment to let anything either inside or out. An unscrewed crown is not an open hole, something would have to be damaged to let water in.
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21 October 2019, 05:06 AM | #11 |
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Okay good to know. Appreciate the comments. I wasn’t sure if screwing the crown down created the only seal or there was one there regardless.
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21 October 2019, 05:59 AM | #12 | |
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Quote:
Note that on the inner O-rings it states "operative even when the crown is unscrewed" TripLock.jpg
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21 October 2019, 07:04 AM | #13 | |
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Yes, there is a chance. There's always a chance. However, I would be inclined to say it's so small that it's basically equivalent to any of us on the forum migrating to the moon. Relax and enjoy |
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21 October 2019, 07:12 AM | #14 | |
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Old seals which have gone hard and lost their elasticity or serious case damage around the Crystal are liabilities along with corrosion around the Case-back. It's an age old problem that Rolex has worked hard to virtually eliminate. |
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21 October 2019, 07:12 AM | #15 | |
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Quote:
You don't need to wash your watch like it was a pair of socks. |
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21 October 2019, 07:14 AM | #16 |
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side question, how tightly do you screw the crown back in...always feel like i tend to go tighter
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21 October 2019, 07:16 AM | #17 |
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21 October 2019, 07:17 AM | #18 |
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21 October 2019, 07:43 AM | #19 |
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Thanks for the diagram. Which exact rings are missing from the DJ41?
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21 October 2019, 08:11 AM | #20 | |
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Quote:
Also, I don't wash aggressively, but I keep a clean watch. |
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21 October 2019, 08:37 AM | #21 |
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The crown shouldn't be cinched down tight anyways.
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21 October 2019, 11:26 AM | #22 |
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So in theory, you can have a shower with a DJ and the crown unscrewed?
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21 October 2019, 11:52 AM | #23 |
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Any day of the week.
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21 October 2019, 12:11 PM | #24 |
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The screwdown crown is pretty ancient technology. I have watches that are rated to 100m and don't even have one.
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21 October 2019, 12:17 PM | #25 |
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21 October 2019, 12:24 PM | #26 |
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21 October 2019, 12:27 PM | #27 | |
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When can water enter the watch?
Quote:
People worry too much... Many defenses against water ingress even when the crown is not screwed down. Each red segment in the cutaway below acts as a seal against leaks. Scratches are the #1 thing that worries people. Only answer to that is leave it home or wear a terry cloth wristband over it. Water doesn’t get in unless one goes deeper than model is rated, or fails to get proper service. Sent from my iPhone using Tapatalk Pro
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21 October 2019, 12:51 PM | #28 |
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21 October 2019, 02:45 PM | #29 |
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The pushers on a Daytona only have a single tiny o-ring and the watch is rated for the same 100meter depth water resistance.
The case-back only has a single O-ring. The valve stems in the tires on your car only have an O-ring and they keep the air in your tires for years. There are plenty of designs of other engineered stuff that are waterproof and don't use any gaskets or O-rings.
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21 October 2019, 08:03 PM | #30 |
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Is there a chance? Absolutely, unequivocally yes.*
Is it likely? No. *If water became trapped between the crown cap and the tube o-ring (a plausible scenario when the crown is unscrewed) it is possible to assist the water’s entry in to the case when you manipulate the crown by pushing it down and screwing it closed. The functionality of the gaskets is conditional on the water being static during the exposure. Introduce additional forces and you enter the realm of the unknown. As I said, it is unlikely (due to the volume of water trapped in the crown being so low anyway) but it is absolutely possible. It’s the same reason you cannot operate most chronograph pushers under water. |
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