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Old 21 April 2015, 09:41 PM   #1
nintendo
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BLNR crown seems tight

My BLNR's crown seems tighter to unscrew as compared to my subc date. Anyone has similar experience?
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Old 21 April 2015, 10:02 PM   #2
padi56
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My BLNR's crown seems tighter to unscrew as compared to my subc date. Anyone has similar experience?
Just use it a bit then it will loosen up, or put a very tiny bit of Fomblin grease on threads with say a tooth pick. Fomblin is a brand name for white lithium grease and that's whats Rolex themselves use.
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Old 22 April 2015, 02:04 AM   #3
brettpaul
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More knowledge - thanks Padi!!
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Old 22 April 2015, 02:14 AM   #4
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Great tip padi
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Old 22 April 2015, 02:50 AM   #5
gummy
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Have the same issue with my Sub-C LV...Always thought it was weird and just dealt with it.

I'm gonna try the Fomblin grease!

Thanks Padi
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Old 22 April 2015, 02:55 AM   #6
NorthernPike
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I use silicone grease, same as I use on O rings of all my other diving equipment.
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Old 22 April 2015, 03:14 AM   #7
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Had the same issue with my 116710. After 6 months it seemed to loosen. Actually, I appreciated the fact that it was tight.
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Old 22 April 2015, 03:58 AM   #8
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That's probably a good thing and will loosen some over time. Nothing to be concerned about.
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Old 22 April 2015, 01:13 PM   #9
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Thanks everyone! Was just concerned if the tight crown would damage the screw thread overtime. Seems like undue worries. Might try the silicone grease, not sure if I can find any of the Fomblin grease here in Singapore.
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Old 22 April 2015, 01:24 PM   #10
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You need a very tiny amount. I use it to keep my O ring healthy and flexible. It will attract dirt. After a month or 2 you'll need to carefully wipe away the dirt or it will cause the O ring to wear. Typical of any dive gear, you have to maintain your O rings.
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Old 22 April 2015, 02:06 PM   #11
Brian Page
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Quote:
Originally Posted by NorthernPike View Post
You need a very tiny amount. I use it to keep my O ring healthy and flexible. It will attract dirt. After a month or 2 you'll need to carefully wipe away the dirt or it will cause the O ring to wear. Typical of any dive gear, you have to maintain your O rings.
True True
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Old 14 June 2015, 07:49 PM   #12
Nairn1980
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I have noticed this with my Blnr too and it can be really tricky to get the crown out to the final position (that stops the second hand)
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Old 14 June 2015, 07:57 PM   #13
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I have noticed this with my Blnr too and it can be really tricky to get the crown out to the final position (that stops the second hand)
Today most crown related problems are simply down to the winding crown not being used enough.With today's many Rolex myths on the net like if I use the winding crown it will wear the threads out etc which is complete boswelocks.As crown tubes are just disposable items, and are replaced at normal routine service, same for the mainspring plus winding crowns are often replaced too.
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All posts are my own opinion and my opinion only.

"The clock of life is wound but once, and no man has the power to tell just when the hands will stop. Now is the only time you actually own the time, Place no faith in time, for the clock may soon be still for ever."
Good Judgement comes from experience,experience comes from Bad Judgement,.Buy quality, cry once; buy cheap, cry again and again.

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Old 14 June 2015, 09:15 PM   #14
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Is it due to the fact that your BLNR is newer than your Subc date?
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Old 21 June 2015, 02:29 PM   #15
nintendo
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My blnr is indeed newer than my subc. When I sent in my blnr for regulation. I surfaced the issue on the tight crown and the technician simply lubricated the screw thread and all is well now.
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