Tissot Chemin Des Tourelles Skeleton T-Classic Automatic Blue Dial Men's Watch T1398361104800 Item SpecificationCrystalDomed scratch-resistant sapphire crystal with antireflective coatingResistanceWater resistanceMovementSwiss AutomaticCollectionT-ClassicBand MaterialStainless SteelBuckle Type Interchangeable quick release bracelet, Butterfly clasp with push-buttonsPower ReservePower reserve up to 80 hoursDial ColorBlueFunctionsPatented Nivachron balance springLugs20.0 mmCase Material316L Stainless Steel CaseCase OptionsSee-through caseback