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I'm surprised you say that. I'd say that IF (!!) barrel diameter, beat rate and all other things are equal, the length is directly correlated with the power reserve. A random/quick google search found me this quote from Longines "The length of the mainspring directly correlates with the amount of power reserve a watch has. The longer the spring, the longer the power reserve or also the reduction of the vibration, i.e. from 28’800 A/h to 25’200 A/h. (less vibration, less energy needed)." (https://www.longines.com/en-za/universe/blog/what-is-power-reserve-on-a-watch) A few anecdotal experience on my side would also lead to that conclusion. Then, of course, it depends what you mean by "verry small". In the particular case with an original MS of 300mm, going to 280mm, I'd expect losing maybe 2h of power reserve. Just a "guesstimate". -
By nevenbekriev · Posted
Actually one would not claim such thing about the power reserve without check to confirm this, but if any difference, it will be verry small. -
By Michael1962 · Posted
Another question if I may. When you guys buy watch lots are you buying a mix of mechanical and quartz as well? Most of the job lots I am finding (all overseas) are a mix. If they are all mechanical, it is generally just movements with no cases. I am not at the point where I can identify movements by just viewing them so I'm not inclined to buy a bunch of stuff which will just end up lying around. Is anyone able to successfully move any of the watches they save on to someone else? I can't see a viable market in Australia for refurbished watches. Most people I have seen at work only have a watch if it counts their steps, answers their phone and makes the coffee. I'll admit it, I have a super cheap smartwatch on my wrist. Will I buy another one when it quits? Doubt it. I don't know if I would even bother with a pedometer. Heart rate? And do what with all the data? Blood pressure? Never been right since I got the watch. Sleep? If I can't work out that I'm not getting enough, I need to have a serious talk with myself. I think I'll go back to my Seiko and just make myself stay active. -
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By JeremyLaurenson · Posted
I suppose this fits "best" in this forum 😃 Im looking for some wall 'art' that doubles as a reference. Specifically Id like to find an ETA 28xx or Sellita exploded movement view. 2824/2836 would be ideal. Have any of you seen/found such a thing - there seem to be a lot of these for specialized movements, and none of them ready to print or to be had as a poster. Why help is appreciated.
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