Bulova Mens Sea King UHF Chronograph Dive Watch - Black & Yellow - 300M WRThe Sea King UHF chronograph offers the Bulova exclusive Ultra High Frequency movement, which operates at a frequency of 262kHz, making it 8 times faster than a standard quartz movement and accurate within seconds per year. Additionally, this watch is ideal for the deep see diver, with a water resistance of 300 meters, a black ion plated steel case, luminous details, and a durable rubber strap. Stainless steel case with black ion plated finish Black