It used to be a bad idea to set date near midnight on a mechanical movement. But for new modern movement like the NH35, it no longer is the case. Let's find out why
Nice! Thanks for the explanation, but to be honest, I prefer to be safe than sorry and change the date out of that time zone, old habits that may save a movement if it's faulty, even if it's a new model version of it. 😅
Thanks for the explanation. Do you know ir a NH35 could be damaged if I do all you explained? Its an old reliable movement, so it doesent enter in the newer versions right?
this is what i was thinking too before, but i have seen & repaired some NH35/36 where : - the rapid date plastic wheel was forced ... one of the long teeth was broken - the date was changing at 1 and a half oClock, then some days latter after 3oClock : in both cases the black/white plastic teethes were forced by the rapid change ... theets deformed/broken and slipery every 3 to 7 days ... Both might be due to a date disk blocked at some point by the dial ... but i always prefer to be safe ... at least on the fast date change / reversed time set that could both explain the break. 🤔 the plastic parts are here as "fuses", so bad usage or locked parts could explain their break ... which one do you choose ?
Interesting. We spent days trying to break the mechanism deliberately but we just couldn't. Both the date change and quick set have mechanism in place so that when something goes against them, they move out of the way. At least that's what it should look like on a pristine movement. But most watches, when worn over time, can get obstruction due to various reasons. When the mechanisms cannot move out of the way because of the obstruction, they can break. But we have to attribute the damage due to the obstruction rather than the design of the mechanism. Granted, one thing that contributes to the teeth breaking or deforming is that they are made of plastic. These plastic gears work fine out of the box, and for quite a while too. But it's not uncommon for plastic to degrade over time and becomes brittle or deformed. That could also be a reason for those breakages.
@@DIYWatchClub i agree about almost everything in your video, and to be honest, i still think that on "fully working NH35" even "reverse setting" the time at midnight, changing etc would not be a "short term" problem : i'm suspecting a more uncommon lock for the "date ring" (where ? possibly its quick set jumper or the long standing one at a specific "ongoing position ?" never managed to reproduce it ...) a possible strong jumper spring (the one on the plate) or a sometime "locked date ring" could affect or wear of the plastic teeth and could explain the break i have seen, i'm sure a "locked date ring" one is fully destructive on both parts ... but that's hard to reproduce, and the plastic parts as fuses are common : still thinking why ... unless for the "locked date ring"
@@s3k0. you're absolutely right, one of them with a broken "quick date" change was a NH36 (and not a NH35). still wondering how the owner did it, because i was suspecting a locked "date disk"/"day ring" at first ... seems to be possible without this issue ?
