3 Answers

Notoriously unreliable.

If they are cheap as chips and you only intend to use them now and again,they should be fine,,but if you intend to use them quite often,,then i would buy a more pricer and up market tool,,however the chinese make cheap junk,and pricer good quality tools..>>>>>>>><<<<<<<..

Whether it can and will be successfully produced at a larger scale is still unknown but historically Grand Seiko and Seiko have not rolled out new technology until all the bugs are worked out that's why the Spring Drive took so long to bring to market. The SLGH002 is link a statement piece as a watch sure but it's also a statement of intent of an intention to keep making link very serious inroads indeed into link stretching the limits of high-end fine watchmaking.