Longines Master Collection Chronograph Small Seconds Watch - 42 mm Steel Case - Blue Dial - Blue Alligator Strap - L2.759.4.92.0 37 and the iconic Ring Command

and the iconic Ring Command bezel

non screw-locked crown with two gaskets and integrated push piece

This bold timepiece features a strong 43mm stainless steel case with an azure unidirectional rotating bezel

has a Titanium 39 mm Case with Screw Down Crown and a Titanium

Longines Master Collection Chronograph Small Seconds Watch - 42 mm Steel Case - Blue Dial - Blue Alligator Strap - L2.759.4.92.0 37 and the iconic Ring Command42. 00 mm stainless steel case, transparent sapphire crystal back, scratch resistant sapphire crystal, sunray blue dial with applied indexes, caliber L688 automatic movement with chronograph, hours, minutes, small seconds at 9 o'clock and date, approximately 54 hours of power reserve, blue alligator strap. Water resistant to 3 bar.