The Top Time B31 brings Breitling’s 1960s motoring spirit into a compact 38 mm format. Its dashboard-inspired white and sky-blue dial is powered by the COSC-certified Manufacture Caliber B31 with a 78-hour power reserve. Movement: Movement: Self-winding mechanical Calibre: Breitling B31 (Manufacture) Power Reserve: Approx. 78 hrs Calendar: Dial aperture Case: Case Material: Stainless steel Water-resistance: 10 bars (100 m/330 ft) Bezel: Fixed Crown: Non screw-locked, two gaskets Crystal: Cambered sapphire, glareproofed both sides Dial: Dial Color: White and sky blue Dimensions: Diameter: 38 mm Thickness: 10.31 mm Lug Width: 20.05 mm Strap: Material: Calfskin leather Color: Brown Lug/Buckle: 20 mm AB3113281A1X1