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| Quartz that moves like a auto | Rating: 
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| Posted: Fri Jul 31st, 2009 12:52 pm |
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13th Post |
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bigrustypig 3T WIS 
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Indeed the Seiko Spring Drive is very different. While a good automatic watch may seem to make a clean sweep when the second hand moves around the dial, look at it with a good magnifying glass and you'll notice there are very minute and almost undiscernable stops. The Spring Drive is a true clean sweep and one won't even notice the minute movements of its second hand.:)
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| Posted: Sat Aug 1st, 2009 01:27 am |
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14th Post |
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oagaspar Site Founder 
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armandsv wrote: oagaspar wrote:most eta based watches will provide enough gauss protection to sustain 5 gauss and much higher...some are much greater and if the watch is iron clad/anti-magnetized the gaussian level is much higher 800+ ...a Rolex achieves 800 gauss without any shielding hand6.gif your best bet is to buy a higher end chrono with a iron clad case then you wouldn't have to worry imo.... demagnetizing a watch can be done at home but I will keep that to myself so no one tries it and screws their watch up! :D...but watch demagnetizers can be bought for relatively cheap .... you know your watch has been magentized when you are in an environment say such as your work place,light plants,MRI etc... and your watch starts to run eratic....slow/fast etc. ...if you think your watch has been magnetized which in a normal environment is highly improbable because most all modern watch movements since the 50's use components that are not prone to being magnetized(see link)but since you say you work in a highly magnetized work space your probabilty will be obviously higher ....if this happens and you notice a difference in the operation of your watches ability to tell time just take it to a jeweler...one preferably with a watchmaker onboard and he/she can demagnetize it while you wait with a demagentizer...they simply pass the demagnetizer over a target zone a couple of times and that is it. Your best bet is to just buy a good watch and do your research 1st as most watch companies can provide the gauss ratings of their watches...and I'm not talking Invicta/Slopnbc OK?....like I said earlier Rolex,Ball,Sinn,Kazimon,Benarus 1KM and hoards of other fine brands have watches that more than qualify for your work place.hand6.gif but imho just remove your watch when you are in close proximity to whatever you are talking about and your worries will never start! :D:D:D http://horologyzone.com/watch/watch-school/anti-magnetic-watch.html
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| Posted: Wed Aug 5th, 2009 09:59 am |
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15th Post |
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Bromo33333 3T WIS 
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Just my 2 cents - I wonder if Seiko is using a Phase Locked Loop or Phase Locked oscialltor with the mechanical movement as the oscillator (the way you would build a crystal oscillator?). Most electronics, especially timers and clocks require a reference of some kind. A PLL that uses a mechanical oscillator feeding a piezoeelctric element might do the trick. They could then take the piezoelectric element to convert the electrical regulated impulse back to a mechanical vibration which would be very tricky, but could be highly accurate. But it would be typical quartz unless the piezoelectric elements were thermocompensated. The thing that makes me scratch my head, I cannot see a way to have an electric circuit without a reference of some kind, or at least a piezoelectric electrical/mechanical converter? Oh, and I am not a big fan of the quartz tick-tick-tick, but my favorite watch in my collection (gold/stainless Cyma quartz c 2000 as I got as a gift) has it. KenC wrote: JKang wrote:Seiko Spring Drive? Last edited on Wed Aug 5th, 2009 10:05 am by Bromo33333 |
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| Posted: Fri Aug 14th, 2009 10:28 am |
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16th Post |
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Bromo33333 3T WIS
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Oh forgot to add, if you hate the "tick" of the quartz, you could always get one without a second hand. They exist on some relatively high end, though ti's pretty rare. Also ... you could get a small second watch - the smaller dial makes the tick far less harsh looking.
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| Posted: Fri Aug 28th, 2009 01:45 am |
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17th Post |
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nebgonf 3T WIS
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Citizen Eco Drive?
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| Posted: Fri Aug 28th, 2009 04:35 am |
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18th Post |
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Hammerfjord Moderator 
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Omega tried themself with some auto/battery movement with the Omegamatic: Saw a Seamaster like that once. The rotor load a battery who gives very regular electric impulses and push-up the accuracy of the movement. The battery was said to have a long life but anyway, it still had to be changed over the years. The model I saw was 5 years old and the guy never had any trouble. Still, it seems like Omega didn't make a hit with this hybride... As the production stoped apparently, those watches are maybe rare but certainly less expensives than a regular auto.
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