This is a circa 1996 37.5mm. (10mm. thick) LONGINES “Monument” chronograph in near pristine condition. Notice the beveled lugs, onion style crowns and pushers, bubble date aperture and very “vintage” looking original dial. I also like the thin leaf hands-also very “vintage” looking. This LONGINES has a mineral glass crystal and accurate automatic winding LONGINES movement. This LONGINES is EXTREMELY clean. These watches are actually uncommon to find and offer GREAT value at this price.