I have several watches, wristwatches and several pocket watches. I bought these as a cheap everyday watch to keep in the change pocket of my jeans so as not to ruin my good watch. They look very nice and tell the time well for a $20 mechanical watch. Seiko watches under $500 usually guarantee a tolerance of +45/-35 seconds per day, which is unacceptable, but I have about 12 of these, and they all work in the -2 to +20 second per day range, and most of them work about +10-15 seconds a day. This is surprising for a mechanical watch in this price range. The surprise of this pocket watch is that it runs continuously for about three weeks at a speed of +5 to +10 seconds per day - amazing for a $20 watch! . Except for very expensive watches, none of them provide timekeeping accurate to the second every day. Even quartz watches, while more accurate, require regular time calibration. Expect acceptable timing with a loss or gain of up to 20 seconds or less per day - this is NORMAL. However, if a watch runs erratically (e.g. faster one day and slower the next) and winds fully every day, it is not working properly and needs servicing. All mechanical watches require regular maintenance or repairs in the event of a fall. (Never drop!) They need a professional to clean, lubricate, and adjust every 2-5 years, and most recently I checked the maintenance cost to be around $300-$350. So I wouldn't recommend overestimating a $20 watch as it basically becomes disposable once its performance begins to decline. Like most in this price range, this pocket watch has nothing special. There is lum, but it looks more like old white paint, there can be no question of phosphorus. While the dial looks cool, the dial isn't the easiest to read, and the seconds hand can only be seen in the right light. The back is see-through [mineral] glass but there is nothing interesting there, not even the markings on the mechanism etc. There is also no "dip" in the watch so the hands don't stop when the crown is pulled out. For watches that don't require lockpicking, I reset them using the following steps, whether running fast or slow: Almost: When the time is in the minutes and the seconds hand reaches the 30-second point (number 6), I pulls the crown out 1 stop and moves the minute hand back 1 minute. Then push the crown back in. Slow: When the time is minutes and the second hand reaches 30 seconds (number 6), I pull out the crown 1 stop and advance the minute hand 1 minute. . Then push the crown back in. The above procedures help keep the watch on time for 30 seconds, and I do this whenever the minute hand is off by at least a full minute. 1 stop (two for watches with a date function). If you try to pull it out at the second stop, you could pull the crown and stem out all the way (I made a mistake) and permanently damage the watch. Luckily I was able to put it back in and it's been working great ever since. OVERVIEW: I would definitely buy it again. Mine seems to be working fine and well built. I like the look, the size and the timing. They are very quiet, unlike old pocket watches which can be heard ticking even in a quiet room. I'm hoping it lasts at least 3 years, maybe longer if I don't run it every day, although it would be nice to run them maybe once a month to keep the oils from curdling. If your watch isn't accurate (within reason, which can be +/- 1 minute per day for a $20 watch), consider having it checked by a professional watchmaker first if it's free . I wouldn't go to a jeweler as most of them don't know much about watches other than adjusting watch bands and changing quartz batteries. Otherwise they could be handled roughly during transport, which is not good for a mechanical watch. Hooray!
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