Bringing together precision technology and reliable durability, this watch from the Chronograph Collection represents the ceaseless quest for improvement. Better starts now, with tachymeter and chronograph precise to 1 5 of a second up to 60 minutes for consistent accuracy. Featuring sleek black dial as well as date display and 12 24 hour time, it is stylishly functional. Powered by Eco Drive Technology, power is sourced from light, so you never have to worry about batteries or charging for peace of mind. Caliber number B612.