MAST Milano CEO Dark A24-BK402M. 16I Man 24 hour Single-hand Quartz Watch. Quartz Man 24 hour Single-hand Wristwatch MAST Milano CEO Dark A24-BK402M. 16I with Stainless steel case, with diameter 40 mm, White dial and Burgundy Italian leather band. Category - Wristwatch Brand - MAST Milano Collection - CEO Dark Producer Code - A24-BK402M.