Bulova Men's Champlain Chronograph Collection Two Tone Precisionist Watch 98B228. Precisionist 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 gold and silver ion-plated finish, black multi-level carbon fiber dial, luminous hour and minute hands, luminous markers, calendar, screw-back case, screw-down crown, and double-press fold-over clasp with safety lock. Powered by Bulovas proprietary three-prong quartz crystal Precisionist movement with a 262kHz vibrational frequency--eight times greater than standard quartz watches--for unparalleled accuracy. Technical Specs Case Material: Stainless Steel Case Diameter: 46.5 Case Thickness: 17.9 Functions: 1/1000 Second Chronograph, Calendar Crystal: Curved Mineral Crystal Dial Feature: Luminous Hands and Markers Water Resistance: 300M Movement: NN50 Style Gender: Mens Case Color: Two-Tone Dial Color: Black Strap: Two-Tone ID: 98B228.