Rare Seiko Skx007J Black Boy | eBay,Excellent SEIKO Black Boy Made in Japan SKX007J1 7s26-0020,il_1080xN.4065343347_njpx.jpg,Amazon.com: Seiko SKX007J1 Analog Japanese-Automatic Black,Amazon.co.jp: SEIKO セイコー Black Boy ブラックボーイ 腕時計,Very rare Seiko SKX007J Black boy Japanese Model. This watch has been in my personal collection and it is with a sad feeling I am selling it.\r\rThis is a special version as it comes with the upgrade NH36-002R automatic movement (original Seiko SKX was using 7S26) which comes with 24 jewels ( while most other movements have 21 jewels) with 21600 beats per hour and a 41 hour power reserve. Watch also has a day/date complication!\r\rThe case might have some minor scuffs from minimal use, but nothing noticeable.\rSapphire crystal and bezel have no scratches and watch is in great condition overall.\rWatch has a 200 meter water resistance and comes with the original Seiko rubber strap.\r\rOverall this is a beautiful piece and will make a great addition for collectors and watch enthusiast.