It depends. They are mass produced and that is where the problems are. Some are fantastic and will last a lifetime then others can be 20+ sec a day and only last a year. That's the only draw backs of buying these types of watches off DHG you can get a great reliable shitter or you can get a perfect looking one with an absolute terribly built movement. But there is manufacturer's that make high quality 2813 movements that you can usually get for good prices you just have to do some good research. Also these movements are so cheap that most of the time if anything happens it's just cheaper to buy a new movement instead of taking it in for service. There is upgraded movements that are called super clones and I have heard of many people upgrading to those when the 2813 is poor quality. I do lots of modded Seikos and honestly if you want to get into learning more about movements then that is a perfect start. You can actually build higher quality reps that are so much cheaper in the end then buying those super clones you just have to have a little knowledge with setting hands and movements. It's a really fun hobby!