Caliber: CO 771 Power reserve: 55 h Frequency: 4 Hz, 28’800 vph Dimension: 13 ¼’’’ Jewelry: 28 Winding: Automatic Function: Chronograph, Hour & Minute, Second, Date Diameter: 47 mm Thickness: 20.80 mm mm Material: Titanium grade 5 with black PVD treatment Water resistant: 100 meters / 10 ATM Material: Brass Color: Grey Hands: Leaf, Skeleton, Galvanic black polished finishes Material: Vulcanized rubber Color: Black Interhorn: 24/20 mm Style: Pin Buckle Material: Stainless steel with black PVD treatment