"The GrandeVitesse is the perfect combination of athleticism and sophistication, a trademark of Longines. The L3.635 models boast a sleek bezel with the tachymeter conveniently printed on the dial. For a slight twist, the L3.636 models feature the tachymeter on the bezel. This timepiece runs on the reliable caliber L683, inspired by the Valjoux 7753. Crafted from stainless steel, the watch's cases are designed with graceful, sweeping lugs. Ref. L3.635.4.06.2 showcases a sleek grey dial and is accompanied by a leather strap."