TOPCHANCES FLENT8033 Hollow-out Gear Automatic Mechanical Watch Round Dial Stainless Steel Band for Men (Black) The whole body is made of stainless steel, sturdy in structure and uneasy to scrape Three working sub-dials to indicate day, date and second.Three watch hands to display the time Reveal the wearer's sense of taste and occasion. It is also a good gift for you and your friends As a businessman, sobriety is all your watch must offer beyond the time, the watch will accomplish this for you Automatic mechanical watch, neednt battery, environmentally friendly.Back cover hollow-out design, can see the complex structure of the dial