Ballast mens trafalgar chronograph watch bl 3101 0f specifications brand ballast packaging ballast packaging case width approx 46mm case depth approx 14mm gender mens dial colour black date yes clasp type buckle case material ion plated black plated strap type genuine leather strap strap colour black water resistance 100 metres movement quartz chronograph yes mpn bl 3101 0f guarantee ballast 2 year guarantee