From the Precisionist Collection with precise timing to 1/1000th of a second and continuous-sweep second hand, the Precisionist Chronograph is particularly refined. In stainless steel with curved crystal, multiple-layer black carbon fibre, blue, silver and black dial, yellow second hand, luminous hour and minute hands, luminous markers, calendar, screw-back case, screw-down crown, and secure double-press fold-over clasp with safety lock. Powered by Bulova s proprietary three-prong quartz crystal Precisionist movement with a 262kHz vibrational frequency eight times greater than standard quartz watches for unparalleled accuracy. Calibre: NN50