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13 August 2019, 04:44 PM | #1 |
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How tight to tighten crown
As the title states how tight should one crank down on the crown after winding, I guess crank down is a bad term to use.
All my watches have threaded crowns and I’ve always just unthreaded them to set the current time and date then after I’m done setting time I push the crown in and turn gently backwards until it clicks to ensure the threads are lined up then go forward to tighten and I usually tighten until it stops turning, well now I’ve read that going all the way down until it’s snug is incorrect some advise to go until snug then back off 1/8-1/4 of a turn but I’m thinking that could let water in, they say turning until snug can damage the threads on the crown stem. I have never had any part of a watch apart so I have no idea what the inside of a crown looks like, I’m sure there designed differently on the inside form one maker to the next and my small collection consists of a Rolex DJII, Omega Seamaster, Tudor BB and Citizens Eco-Drive so looking for some general guidelines on what should be a simple task. I know I don’t want water on the inside of any watch I have but I also don’t want to damage anything by over tightening the crown and possibly stripping the threads or damaging the gaskets Thanks
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Citizens Eco-Drive BL1258-53L Rolex DJII 116334, Tudor Heritage Black Bay 79230R Omega Seamaster Aqua Terra GMT 231.13.43.22.02.004 Ulysse Nardin Marine Torpilleur 1183.310/40 MAS Irukandji Vostok Komandirskie B&R BR0392-D-G-BR/SCA Vostok Komandirskie (Tank) South Bend Model 1 #716632 Vostok Amphibia (Sub) |
13 August 2019, 06:12 PM | #2 |
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Just close it with your thumb and forefinger.
No need for any force. Or back it off until the crown is where you want it. It will make no difference to the water resistance of a twin or triplock.
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13 August 2019, 06:19 PM | #3 | |
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Quote:
Thanks for your input
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Citizens Eco-Drive BL1258-53L Rolex DJII 116334, Tudor Heritage Black Bay 79230R Omega Seamaster Aqua Terra GMT 231.13.43.22.02.004 Ulysse Nardin Marine Torpilleur 1183.310/40 MAS Irukandji Vostok Komandirskie B&R BR0392-D-G-BR/SCA Vostok Komandirskie (Tank) South Bend Model 1 #716632 Vostok Amphibia (Sub) |
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14 August 2019, 12:51 AM | #4 |
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I agree with your technique. This is how a screw-down crown is meant to be used.
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14 August 2019, 01:39 AM | #5 | |
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Quote:
You always want the gasket to contact the sealing surface, that's the point, and you always want some level of "crush" to set the seal. Snug is an appropriate term, or finger tight. However, you never have to unscrew the crown as some sort of final adjustment; that just doesn't pass the ho-ho test.
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14 August 2019, 01:59 AM | #6 | |
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Quote:
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Citizens Eco-Drive BL1258-53L Rolex DJII 116334, Tudor Heritage Black Bay 79230R Omega Seamaster Aqua Terra GMT 231.13.43.22.02.004 Ulysse Nardin Marine Torpilleur 1183.310/40 MAS Irukandji Vostok Komandirskie B&R BR0392-D-G-BR/SCA Vostok Komandirskie (Tank) South Bend Model 1 #716632 Vostok Amphibia (Sub) |
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14 August 2019, 03:51 AM | #7 |
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14 August 2019, 03:59 AM | #8 |
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It's a technical engineering term. It is equal to the also highly technical "smell test", however that particular test is more exacting and requires a specialized tool.
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14 August 2019, 08:30 AM | #9 |
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Lol
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Citizens Eco-Drive BL1258-53L Rolex DJII 116334, Tudor Heritage Black Bay 79230R Omega Seamaster Aqua Terra GMT 231.13.43.22.02.004 Ulysse Nardin Marine Torpilleur 1183.310/40 MAS Irukandji Vostok Komandirskie B&R BR0392-D-G-BR/SCA Vostok Komandirskie (Tank) South Bend Model 1 #716632 Vostok Amphibia (Sub) |
8 September 2019, 06:33 AM | #10 |
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...and I noticed in my 116613LB the crown closes differently. Sometimes the crown sits at 2 o'clock sometimes at 5'.
Then when I flip it on it's back case I see that the thread has not completely sunk in. Normal, or should it be tightened more so no thread is exposed? Cheers It's just all about health, happiness & family. The rest are just necessary inconvenience we have to deal with. |
8 September 2019, 01:04 PM | #11 | |
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Quote:
I’m not sure any threads should be showing unless the seal in the crown is not fully seated.
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Citizens Eco-Drive BL1258-53L Rolex DJII 116334, Tudor Heritage Black Bay 79230R Omega Seamaster Aqua Terra GMT 231.13.43.22.02.004 Ulysse Nardin Marine Torpilleur 1183.310/40 MAS Irukandji Vostok Komandirskie B&R BR0392-D-G-BR/SCA Vostok Komandirskie (Tank) South Bend Model 1 #716632 Vostok Amphibia (Sub) |
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8 September 2019, 01:13 PM | #12 |
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Thank you.
I remember Bas saying to stop turning once it is snug. Also, when I unscrew the crown to wind I can see the first small gasket around the thread. Cheers It's just all about health, happiness & family. The rest are just necessary inconvenience we have to deal with. |
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