The Atlas is built tough. The polished case is die cast from a solid piece of stainless steel. This is Seiko's first 200 meter water resistant Seiko 5 Sports watch when it was launched back in 2005. Its dimensions are impressive. The diameter of the watch case is 42 mm without crown (46.5 mm with compass crown) with a lug-to-lug length of 48.5 mm and a thickness of 14 mm. Lug width is 22 mm and uses a bracelet with a width of 20 mm, tapering to 18mm at the clasp. The Oyster inspired bracelet links are solid with highly polished sides and matte brushed links with a dab of polished center link strips.