Breaking down the Screw Down Crown - Watch and Learn #71
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- čas přidán 14. 12. 2019
- Let's explore the intricacies of the screw-down crown. It is not quite as simple as you think!
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Thank you for watching. - Jak na to + styl
Never stop doing these Watch and Learns. It's refreshing to see how these things work with the demonstration right on camera.
I won't!
Awesome video bro
Thanks for this. I never believed that crown wobble was anything to be freaked out about. So many people think it's a defect in design or manufacture.
Thanks for watching, Randy.
@@islandwatch Hey Bro my daydate stopped. i removed crown and i put back it dont change date or day only chaning minute and hour. wind turb dont moving too
@@allahdiyengazozkapag9552 get it repaired
Thanks for taking the time to explain this part. I guess I never really gave the screw down crown much thought. From now i will take a little more care in using it !!!
Thanks Ron.
I'm just about to swap an NH36 movement into my SKX and this was extremely informative. There's nothing like listening to an engineer like yourself who can explain things so well. Thanks.
Brilliant! This alone solved almost all my questions and concerns about my various watches. Thank you so much!
As a watch novice I really appreciate your watch and learn videos. Thank you!
You are welcome!
Learned something once again. Thanks for the informaton Mark! Hope to see more of these Watch and Learn videos from you. Happy Holidays!
Received my SKX today. Its my 2nd diver (if you can count the 1961 LLD). I have a Ventura and a regular Seiko, so you cab see my surprise with the crown, I thought I might break it. 10 minutes of a pleasant video and I’m much wiser. Thank you very much, Mark. I subscribed. Impressive stuff. Keep it up! Regards from Czech. :)
Mark, thank you for taking the time to explain this. I never gave it much thought until I tried to upgrade an old SKX I had last year. Completely ruined it in the process.
That's how we learn.
I've been wearing dive watches on and off for 15 years and never understood how that crown worked.
Thanks for this!
Thanks this is a great demonstration. It really shows that the only benefit to screw down crowns for water resistance is that it prevents the crown from getting bumped open while under water. I think high water resistance and screw down crowns tend to go hand in hand because if they engineer good seals in the crown they’ll likely also add a screw down crown. Seiko push crowns tend to be very water resistant. Where as a brand like Hamilton gets flooded from rainwater. It’s all about the design, tolerances, and quality of the seals.
Hi Mark, FEA engineer here. For the crown DOFs I think you mean 3 fixed translational and one fixed rotational (axial - fixed relative to the stem), with the other two rotations free. Had a consulting job doing forging simulations on crowns a couple of years back, and am working on case forging now. You wouldn't believe how many operations it takes just to make the crown. Cheers.
LOL. Thank you ;)
This guy is the best at explaining things, thanks a lot!
I just received my Islander 01 and I understand exactly why you made this video. The Islander takes twice as many turns to screw in as an SKX which seems odd at first and I'm sure you have gotten many questions about it. Thank you, now I understand. I am extremely happy with my purchase and I have recommended the Islander to many people.
Thanks!
Never thought I'd be gleefully devouring mechanical watch maintenance vids but you are a sheer pleasure to listen to sir and you do truly appreciate these micro marvels of Art. Wait, God forbid, and see how very, very interested digital watch owners will be to get a hold of a mechanical automatic if an EMP/solar flare fries their little chips! God forbid, Amen.
I’m afraid they’ll have a lot more than wristwatches to worry about if that happens in their area.
@@jamesbeaman6337 Oh, Absolutely, but at least you can still set your watch around sunrise and sunset to better prioritize your workday of survival chores.
Marc! Thanks for enriching our watch knowledge!!
This was awesome, perfectly explained and it answered all the questions i would have wanted to ask, as this is something i've wondered about for ages.
Thanks Mark.
Great video! I actually have an Orient Triton and this video clearly explains why I have a slight 'wobble'. It's nothing to worry about and I've seen several reviews of this watch that pick on that 'niggle'... Guess they need to watch your video too!
They sure do; that's why I address it specifically.
I always wondered what was the secret to making a watch case waterproof besides the obvious screw back lid with gasket. Thank you this helped a lot!
Very helpful video. Always wondered how the screw down assembly works. Thanks Marc!
Welcome!
Thanks for this tutorial Mark. Good one!
Thanks for doing these videos, Marc. They're very helpful.
I won't.
Thank you Mark, for making this interesting and informative video👍☘
Great video, Marc. I used it to reply to a thread by someone worried about damaging the stem when they screw in the crown.
Great video, and it answered all my questions. Thanks!
Informative as usual! Thanks Marc!
Thank you.
fantastic video! Answered so many questions.
Thank you.
Another great Tutorial! Thank you.
Very educational -- thank you, Marc!
Very interesting. Thanks for showing!
Great video! Very educational on these little details of these wonderful machines...if you simply think how much engineering is going on...Cheers V.
For sure, thank you.
Perfect, thank you so much Mark, you’re the best, you answered the question I was looking for. I wanted to know if the wobble in the screw down crown in my new watch is normal. 🎉
Incredibly valuable information! Thanks so much Mark!
Thanks for watching
Crown wobble - you're a patient man with all the wannabe engineers out there Marc! Keep up the good work sir!
You know it!
Thanks again really appreciate your help understanding especially the seiko dive watches
Wow this helped tremendously THANK YOU!
I’ve learned so much in this vid post. Wondered why about the crown wobble! Keep the Watch and Learn coming.
Great, thank you!
Many thanks for that Demo'. So clear and concise,
That crown wobbling drove me nuts. Thanks for explaining it. Don't know how I haven't figured it out by myself.
Although I must say that on my Omega Seamaster Professional it doesn't wobble even when unscrewed, probably there is another mechanism to keep it steady.
There is a big difference with the finer milled crowns.
you solve my concern. i thought my orient kamasu crown broken because it is wobble. but now i get the answer and it is totally fine. thank you sir 👍🏻 much love from Malaysia 🇲🇾
This is SUCH a cool video. I can't believe it took me two years to stumble on it.
Good vid Marc. Thank you!!!
Fantastic video. Thanks for making it!
Hi
Thanks. I learn so much from you.
One tip for avoiding cross-treading your watch crown is to push the crown in while (at the same time) turning it counter-clockwise until you feel it click away from the thread and then its properly seated onto the thread for screwing it (clockwise) into the watch without misthreading it.
Thank you for the tip.
Excellent tutorial, very informative thanks. I just purchased a Luminox Master Carbon Seal watch with a screw-down crown. Given, the stem does not move further inward when the crown is being screwed back in, is there any fear / possibility of over-tightening the crown and breaking / damaging anything / damaging the crown itself? I mean how tight is tight enough for it to remain waterproof, (I know the usual advice with any screw is to tighten it till you feel solid resistance, but as we all know that what can be considered as 'tight' can be be subjective from one person to another...
Thank you! I thought my watch was broken, this was helpful
Good information Marc! Thanks!👍🏻👍🏻🇺🇸
Thanks!
I received the watch I purchased during the Black Friday Sale earlier this week (Graf Zeppelin Dual Time) and I love it! It was my third purchase from you, and it won't be the last :)
Great, thanks!
Very informative. Thanks Marc.
You are welcome.
Very informative video Marc, which is presented in an easy to understand and interesting manner. Nice job. Wishing you and your family a Merry Christmas and a Happy, Healthy and Prosperous New Year...Ed
Thanks Ed! Same to you.
Your videos are fabulous!!!!
Great video Mark
Hard to believe that skinny little stem can do so much.
Thanks Marc!
Stem of wonder!
@@islandwatch Wonder Stem! 🙏
That was great. I'd never realised that was how they were made. 👍
Hey Mark,
Very good video explaining how this all works. I have a couple of watch modding questions related to this.
I got a knockoff SKX013 case I plan to migrate my SNK809 into, dial and all. I've got a new stem for it (two actually, in case I stuff one up), but I'm now concerned about putting the screw down crown together. Would I just assemble it and affix the crown to the spring at the end of the assembly using the same Loctite I'd normally use to secure a crown to a stem?
Also, is there any specific way to measure the stem length vs how you would measure it for a non-screw down crown?
Cheers
Marc, I recently purchased one of your islander watches with the dual time bezel. Do you have a video on how to use the dual time bezel?
Thanks
You saved me some money on watch and learn - how to fix a chronograph hand not stopped at 12 a clock. Thank you Mark.
Welcome!
@@islandwatch hey Mark. I wanted to ask you to make a video - how to fix a Tight bezel action on a Diver-make it to turn nice and smooth. I had to learn that the hard way scratching my SKX. I tried to lubricate and what not..finally bending up the two teeth ( to keep the bezel a little bit up and stop the backplay ) helped amazingly. My SKX have been pretty tight from the beginning.Nowit is turning perfectly. Merry Christmas buddy.
Great video! Thank you for addressing crown wobble with a screw down crown! What about crown wobble on a push/pull crown? Does this mean it's loose from the stem?
Hello sir thanks for this amazing viedo. Is there a way to glue back together the stem and the crown in case they get apart?
Great video very informative 👍
I’ve taken out the crown steam from a rotary watch it’s a screw down crown on a battery watch and now when I put the stem back in it’s changing the time when I’m screwing back onto the watch when it shouldn’t in this position any idea’s?
Great video. Simple concept and yet so much I didn't know. I have a question... I have a few watches that feel like they are still "hand-winding" as I screw in the crown. Do I understand correctly that the stem might be too short, and therefor the crown doesn't have enough "travel" to disengage the stem? Thanks!
That is perfectly normal, and to be expected.
Another great one. Thanks a lot!
Thanks for watching
@@islandwatch You're welcome!
Very happy to see the watch & learns back. There's so much going on that I would not otherwise be aware of were it not for your content! Thanks very much for what you do!
Great Splaining Mr. Mark..
Thank you!
Hi, when screwing down the crown, how tight should it be? My worry is I might damage the gasket.
Degrees of freedom talk flashed me back to GD&T for mechanical eng
Hey Marc can you post a video on how to install a custom crown from Crystal times. I want to order one, but am not sure how to trim the stem to the exact length on the custom crown. Do you think that is something you could show us?
great vid
Great video. I just got a new nh36 movement for my seiko and it’s not changing the day or date. The crown is stiff when I pull it out to change it to day or date. Any areas I could check?
Great videos
Hi Marc, great video series. I subbed. I've seen some comments elsewhere that automatic watches should be wound more with the rotor instead of the crown. That the mechanism associated with winding with the crown of an automatic is more prone to wear compared to a mechanical watch. Is this true? Also, over time, wouldn't allowing the crown to pop out during unscrewing and jamming the crown in during screw down cause excessive wear or damage to the threads of the barrel and inside of the crown? It seems there would be much less wear on the barrel and crown threads if slowly and methodically unscrewing the crown without pop and slowly engaging the threads during screw down.
great video thanks! did you use a soldering iron to reheat the glue to reattach the crown ?
Hi Marc, thank you so much for the informative video. I accidentally washed my hands with an unscrewed crown on my orient kamasu and immediately screwed it in a minute later. Does it mean that the water must have gotten in ? Please reply would be really grateful to you! 🙏 Thanks.
Hi Mark, great video. I have a Tag Heuer 4000 and I cannot tighten the crown. Any idea on what parts I need and can you recommend a parts supplier. Thanks
Great video, question for you..Say you have the crown in the unscrewed position and you accidentally pulled on the crown thinking there was another setting position but wasn't. What stress/damage could be done? Watch still works as intended and functions the way it should, just curious to know if this could lead to a problem or am I over thinking.
Amazing!!
I’ve seen many people are concern about the manual wind movement with screw down crown. What do you think ? Daily winding with screw down.
I own some Russian Vostok Amphibia watches which also have a wobble on the screw down winding crown; this was designed in to de-couple the winding crown from the movement: therefore any shock to the crown will not be transmitted to the movement.
Thanks Mark.
You are welcome.
Nice video 👍, but I have a Question, is it a good idea to put some fine oli on the screw down crown?
If I need to fit the crown with a new stem (since I replaced the movement) how do I get the stem off that crown spring mechanism so that I can put the new crown on and lock it down? Is that even possible?
What is the first watch in your video? I really like the look of it.
Informative as always, thanks, but what was the salmon dial watch at the beginning?
An Aeromatic triple calendar.
Excellent video. I did indeed have a question for you though. Can you think of why a screw down diver's crown being too tight would cause the watch (quartz movement) to stop? I have a watch that does this at around 5 to 20 past 7. It's like the hands catch on the glass (if not each other) because of some sort of deformation due to the increased pressure. But from what you're saying the crown not impart any extra pressure on the stem nor advance further into the mechanism. I'm curious to hear your opinion as to what might be going on. No watchmaker or jeweller has thus far been able to repair it.
There was harness around the mechanism which I deliberately put a small split in myself which improved the situation - made the watch less sensitive to the "over" screwing down. But the problem persists.
Edit: why not just be gentle screwing down the crown, you might ask. It's incredibly difficult to gauge the difference between too tight and having it spring open.
Mark, do you recommend screwing it down every time? I don't dive, and I am afraid it will wear the thread.
Great video. So how do some watches without screw down crowns get good water resistance? What seals that hole in the case?
Seals on the stem that compress against the crown tube.
Great tutorial, I always enjoy them !
I have a question though, it seem I’ve seen screw down crowns with an “O” ring on the crown tube, and also heard mention of crowns with a “gasket” in them which seats on the end of the crown tube (?), do different manufacturers have different ways of sealing ? And is it to avoid patent infringement?
That is discussed in the video; it's really just different design ideas.
Long Island Watch: Sorry about that ! I guess I got so focused on all the parts it took to make that Seiko crown work and missed it 🤪. Duh 😜
I have a Baby Tuna with the 4R36 movement. After lock down I inadvertently turned the crown and it sounded like it was winding. I noticed it was difficult to turn and that’s when I noticed it was locked. Did I mess it up?
Hello Marc, I recently purchased a skx009j and for some reason I cannot screw the crown back in. Do you happen to know if that’s any issue with skx’s? I pushed it in a little and turned like you did so but it refuses to go in. Thinking about getting the watch replaced. Would appreciate your help!
I have a new watch with a screw down crown that when it pops out it doesn't clear the tube by a lot and the stem is kinda tight/stiff. This is on a quartz watch. I can set the time and the date but it just seems like there is some resistance with the watch stem. I just got the watch yesterday, so what should I do?
Another great video on screw down crowns.
Just a question. Can one overtighten a screw down crown? With my previous watches, TAG Hauer, Christopher Ward, I have always tightened them securely to the point where they butt up against the collar and have had no problems with sealing. However, I have just acquired a new SMITHS Everest and the instructions say that you should only screw down until you feel the crown gasket engage with the tube. It is not necessary to screw it down hard until it touches the case, saying that damage may occur if screwed down too hard. This was a little strange to me, since with my other watches, mentioned above, I tightened the crowns down securely and never had a problem. However, unfortunately water has entered the watch, also misting up the glass. Fortunately, the situation was salvaged before any damage occurred. The watch was only immersed in a tub of water for about 10 minutes, so nothing excessive. I am now reluctant to get the watch wet, although water resistant to 100metres. Could it be a damaged crown gasket? and I am not sure how far to tighten it. My gut feel is to tighten it securely, with the tube and crown contact not allowing further tightening as with my previous watches. Obviously, I don't apply excessive force when screwing down.
Your comments on this would be much appreciated.
Thanks,
James
I posted a similar question (then I saw you asked essentially the same thing). Did you ever get a conclusion / response?
Cannot recall getting a response. However, the CZcams video was really good.
@@jamesgreig8796 Thanks! I am tightening my watch till I feel resistance and it feels tight, without feeling like I am forcing it / pushing it unnecessarily too far.
@@eurodudenj A pleasure. This seems to be the recommended method, so all good.
Top great for help!
Hey, is it possible to make/change to push/pull crown from screw down crown? In case if the screw down breaks?
Very interesting and enjoyable. I kind of disagree with the word normal when referring to crown wobble though. My Sinn 104 doesn't have any. So I understand that while wobble does not indicate a poorly made watch it does indicate that the manufacturer did not make any effort to apply the same precision to the crown.
There's a big difference between a $2 crown/stem and a $50 crown/stem.
awesome video but would be nice if you used a tiny stick or something to point at exactly what you want us to look at when looking at the jumbled mess at the back of a watch. as a newbie im getting lost often.
I have an Invicta pro diver, ETA mvt. And the crown will not wind the spring; seems as though the stem is trying to drive a gear that has stripped. How do you suggest I proceed… in your opinion, is the watch worth fixing..or is it a pricy fix? Is Is the company’s reputation good about service/❤
Are you going to cover pushers that screw down like on a Seiko D
Flightmaster as well?
Possible :)
I have an old Body Glove watch with a screw down crown that stops the movement when screwed down partially. The mall watch repair shop said it wasn't repairable. Is that true?
Any chance we can learn about how push buttons look like inside and how they're water resistant?