This is the SEIKO ASTRON SBXY067. It's currently listed on the Seiko website, so please check there for details. I also bought it used, but I can't seem to stay away from smartwatches, so I'm putting it up for sale. It's in excellent condition with almost no scratches, but please understand that there may be minor signs of use. (It is a used item after all.) I used it with one link removed from the full bracelet. - Brand: SEIKO - Model Name: ASTRON - Color: Black - Accessories: Box, warranty, spare link Thank you for looking.