Breitling for bentley gents b06 stainless steel watch a highly exclusive chronograph its ingenious 30 second chronograph system based on a central hand sweeping around the dial in half a minute thereby ensuring extremely accurate 1 8th second time readingsmovement automatic over 70 hour power reserve 18th of a second chronograph 30 second 15 minute and 6 hour totalizers calendarcase steelstrap steeldial blackdiameter 49mm