MASTOPMen Automatic Mechanical Watches Full Steel Waterproof Mens Watches with Calendar

My son was looking for an automatic mechanical watch after getting frustrated with his quartz watches having dead batteries, so I got him this as a starter mechanical watch. We knew going into the purchase that for $30 we shouldn't expect to much. To our surprise the watch exceeds our expectations.Overall, the look and feel seems to be solid, better than I expected. Even the rotating bezel has a nice feel to it and decent sounding clicks. Once it's running it keeps decent time, and he says it is comfortable to wear and he likes the looks, so it's being used regularly. My son's one complaint is that the power reserve seems a bit limited. The watch has a hand winding feature, so it is possible that the auto-wind feature just doesn't supply enough over the day. I think it might be best to hand-wind before wearing, but it's not my watch and the fact that he has to set it in the morning isn't an issue.All that being said, we like the watch and would recommend it for someone who wants to dip their toe into the world of mechanical watches and stop dealing with batteries.The watch we purchased has the stainless steel bracelet and it arrives at full size, which was too big. Fortunately they included a device to drive the pins out to resize the bracelet. This device is probably good for three of four re-sizing's, it's just very cheap, but it got the job done.If you are considering trying an auto-winding mechanical watch feel free to give this one a try. It's actually very impressive considering the low cost.

Absolute garbage for a kinda nice looking watch. Had to replace the first one because the retents for wdhusting the eatfh 2ehlr3 messed up. The replacement was not bad for detent action but still gritty feeling. The problem with that watch was it would quit running all the time I never have had that happen with either my Seiko dive watch or my late dads Rolex Oyster Perpetual. I figured this out after it was too late to return. Buy another cheap watch. I suggest a Casio or Timex. Both quality watchmakers that happen to make low priced watches too.

I have worn a Seiko 5 for many years. My Seiko had started to run very fast, so I started looking for a replacement. At first I was skeptical about a 20 dollar automatic watch, but after reading a few reviews I took a chance and purchased the Winner.I received the watch very quickly and it was packaged in a plain brown box. Upon opening the box, I found the watch tucked inside a foam compartment ticking away. I went ahead and set the date and time, removed a few links, and started wearing it right away. As of this writing, I have used it every day for 3 weeks, and it has kept perfect time. For an automatic, it didn't seem to have very much reserve. It may have been an issue with just starting to use it, but the first few nights, it would stop running before morning. So I started winding it a little when I take it off at night. Since doing that, it hasn't stopped a single time.The watch itself seems very nice. It's basically a Rolex Diver replica made in China. The stem seems a little easy to pull out, so I'm afraid it may not last very long. But so far I haven't had any issues with it. The band is low quality, but it still looks nice as well. I'm super happy with this purchase.

Looks nice but this is a cheaply made Chinese movement.

First of all, you have to have realistic expectations. This is a $20 mechanical watch, which is insane. I'm told you can buy the bare Chinese movements for about $4; presumably it's even cheaper when buying in bulk. How they are making something so complicated so cheaply is a mystery. But, the band is soft and cheap, the movement feels delicate when winding, and there is no -- zero -- waterproofing. If you get it wet, you can count on the parts inside rusting and the watch stopping in a couple of weeks.Anyway, as you can see from the picture of my timegrapher, in dial up position it gains 5 seconds a day, has a 0.1 millisecond beat error (which is excellent), and a robust amplitude of 261 degrees, which means there is a good amount of force in the hairspring. These results are better than some much more expensive watches I own, like my Hamiton Khaki King. Things change for the worse when I move the watch into different positions on the timegrapher; of course, when you wear a watch, it doesn't sit dial up very much... it runs in a variety of positions as you move your arm about as you wear it. But on average, the watch keeps pretty good time for a mechanical watch at any price point. More expensive watches fare better at different positions (crown down, dial down, etc.) than this one does, likely because the movement here has never been calibrated. I also notice that the timegrapher shows some noise on the second beat. Not sure what that is, but it lends to the impression that the movement is a little iffy.As I mentioned, winding the watch feels delicate, and I’m not sure the clutch is engaging properly, so it may be possible to over wind, and thus damage it. Similarly, the autowind rotor seems reluctant to turn (possibly related to the clutch), so I expect it won’t be long until the watch no longer winds itself and must be hand wound every day. But, that has not happened yet. Another issue with almost any watch that has a date complication: make sure, when setting the date, that the hour hand is not between around 9:00 and 3:00 (p.m., but you can’t tell which a.m and which is p.m. until the date changes). That is around when the date change mechanism is engaged in the watch, and if you try to change the date during that time, you will break the watch. That is particularly true with an iffy movement like this one. On my copy, the date begins to change at around 10:00 p.m. and doesn’t really finish until around 3:00 a.m. That’s not great, but not unexpected in a $20 watch. Once the date has completely changed, it’s a bit off center in the date window.The watch itself feels feather light, like cheap costume jewelry, but it looks nice from a small distance. It rattles and generally feels like a toy and I don’t expect it’ll be running this time next year. But you never know.The thing is though, to me this is worth $20. I have enjoyed the experience of checking out what a $20 watch is like, and since it keeps good time, I think I’m going to add it to my collection and give it some wrist time. It’s the only electric green watch I have; I think it will look shocking on a bright orange silicone band. Used as an every day watch, I don’t think it would make it very long. But added to a collection and worn occasionally, it should make it for a long enough time that $20 becomes a crazy value.So I would say this: if you’re ok with parting with $20 for a working mechanical watch, and understand that it is not built to last, this is a fun thing to play with.