This hunky Seiko 5 series watch calculates traveling distances and compass direction using classic, reliable technology. The left crown is used to trace distance on a map. Maps using the 1:62500 scale (1 inch-approx 1 mile, used by many USGS topo maps and common road maps) can be read directly. It features an automatic 7S36, 23 jewel movement, lumibrite treated hands and markers, screw down crown, and a screw-in case back. Case: Solid stainless steel, 40.5mm diameter (w/o crowns). Band: Stainless steel bracelet with double safety lock three fold clasp with pushbutton release. 20mm. Water Resistance: 20 ATM Warranty: 2 Years