SERIES: Boston FRAMEWORK: Round FRAME: Stainless steel CRYSTAL: Mineral specific hardening STRAP MATERIAL: Leather DYNAMIC COLOR: Black, Yellow DIAL: Black BUTTON: Tokas TYPE OF MECHANISM: Battery TYPE OF PROJECTION: Proportional MECHANISM INFORMATION: TMI VD53 DIAMETER: 44 mm THICKNESS: 12 mm FUNCTIONS: Date, Chronograph, Time indication on 24-hour basis GUARANTEE 1 years of the official representation of Caterpillar