Seiko Automatic Presage 31 Jewels SARD006 Mens WatchSeiko Automatic Presage 31 Jewels SARD006 Men's WatchSeiko Presage Automatics are very interesting and so is this one. Its very clean and very elegant in its appearance and houses the 31 jewels mechanical calibre 6R24B. This brings the advantage of manual winding and seconds hacking beside the 45 hours power reserve, thanks to the Spron 510 mainspring. But to top it all, it is a JDM or Japan Domestic Market model, something you wont find selling with