Bulova Marine Star | Series A 98B278The worlds first curved chronograph movement features high performance quartz technology with 262 kHz vibrational frequency for precise accuracy. Five hand chronograph in a gray stainless steel case with black and transparent brown dial, gray hands and markers, anti reflective curved sapphire crystal, exhibition case back with screw back case, brown leather strap with an alligator grain texture and double press deployant closure. Water resistance to