This Seiko SUS SCXP159 Nano Universe JDM Watch is perfect for outdoor enthusiasts and military - style watch lovers. You can wear it while swimming or during other water activities thanks to its 100m water resistance. With a case diameter of about 35mm and a thickness of 9.7mm, it's a comfortable fit on your wrist. The watch features a stainless - steel hard - coating case and a nylon strap, and it has a black dial with an analog display powered by quartz movement.