Trident crown action

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Fnew
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Re: Trident crown action

Post by Fnew »

Richard B wrote:Why turn it backwards? That achieves nothing. Just turn it clockwise and it'll engage at the next half-turn.

If you apply pressure on the reverse turn, it may have the effect of closing the opening of the threads together. They're always tapering to very thin at the start of the thread.
You do have a very valid point there and I can't offer any augment but, I know with mine, I have to turn it backwards until I feel a "click." At that point the crown will screw in as smooth as silk. If I don't do this I am trying over and over to get it screwed down.

It is this exact issue that let me to Christopher Ward. I was on the verge of buying a Tag Heuer Aquaracer and read that a very common problem with them was cross threading the crown. The forum I was on recommended the C60 as an alternative and I fell I love the moment I saw it.
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Re: Trident crown action

Post by vikingdrvr »

My C60GMT can be a bit fiddly but nothing like my SMP! The Omega will easily begin to cross thread unless I start with a backward motion until feeling the click/drop then it's barely one full turn before it's fully locked down.
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Re: Trident crown action

Post by gaf1958 »

Richard B wrote:Why turn it backwards? That achieves nothing. Just turn it clockwise and it'll engage at the next half-turn.

If you apply pressure on the reverse turn, it may have the effect of closing the opening of the threads together. They're always tapering to very thin at the start of the thread.
I've always used the reverse first technique for screw down crowns as I find it easier to get a positive thread engagement on any watch this way. The pressure applied is minimal, just enough to hold the crown in. I can, however, see the logic in your reasoning... whether I will change my technique remains to be seen :)
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Re: Trident crown action

Post by downer »

gaf1958 wrote:
Richard B wrote:Why turn it backwards? That achieves nothing. Just turn it clockwise and it'll engage at the next half-turn.

If you apply pressure on the reverse turn, it may have the effect of closing the opening of the threads together. They're always tapering to very thin at the start of the thread.
I've always used the reverse first technique for screw down crowns as I find it easier to get a positive thread engagement on any watch this way. The pressure applied is minimal, just enough to hold the crown in. I can, however, see the logic in your reasoning... whether I will change my technique remains to be seen :)
I agree. The reverse first technique is 'best practice' when using any threaded connection - nut/bolt or watch crown. It is far less likely to result in cross-threading.
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Re: Trident crown action

Post by mephistocles »

I have the same on my Seiko 5 Diver - was a pig the first few times as the Crown is polished steel - I wouldnt turn it backwards though i think thats more likely to bend the end of the thread tapers
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chester
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Re: Trident crown action

Post by chester »

I've had no problems with my C60 but some of my Orients are another story.
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Richard B
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Re: Trident crown action

Post by Richard B »

downer wrote:The reverse first technique is 'best practice' when using any threaded connection - nut/bolt or watch crown. It is far less likely to result in cross-threading.
Not totally true. It's best practise where the angle of the turning component is not constrained. However, in the case of a watch's crown, the crown's position relative to the thread mounted on the case is definitely constrained - by the stem. If it isn't, then this is a deficiency of either design or manufacture.
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Re: Trident crown action

Post by downer »

We will have to agree to differ on that.
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Re: Trident crown action

Post by Helix Von Smelix »

james80 wrote:Mine is exactly the same, doesn't take me quite 10 minutes but I do have to push on it and screw anti clockwise until it feels like it dropped down a thread then it screws up perfectly.
Same for me on my C60's. Wait till it drops in, then slowly forward.
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Re: Trident crown action

Post by hickorydock »

Hi everyone,
Just noticed this post so in a bit late.
My C60 arrived before christmas and was put away till the 25th !!!
However I also have trouble with the crown in exactly the same way.
I must add though that the stem of the crown is of a very small diameter. Too small in my opinion and is easily flexed about, so I have to be ultra careful.
This is not the case on either my Orient or Seiko watches.
It's rather off putting when it's my first CW watch.
Maybe you just get what you pay for in the end?
Anyone else think this part is under engineered?
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Re: Trident crown action

Post by jerryuk »

I had a similar issuette with my black C61. I sent it back to CW, they inspected and said it was okay but offered to change the tube anyway, which I took then up on. It screws in really nicely now like my orange one.
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Paul Drawmer
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Re: Trident crown action

Post by Paul Drawmer »

Richard B wrote:Why turn it backwards? That achieves nothing. Just turn it clockwise and it'll engage at the next half-turn.

If you apply pressure on the reverse turn, it may have the effect of closing the opening of the threads together. They're always tapering to very thin at the start of the thread.
Sorry Richard, I disagree with you on this. Using a gentle pressure reverse turn will enable one to feel the thread start, and so engage the thread properly with less danger of cross threading, It's a common method of thread finding for all sorts of threaded stock stuff.
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