This is the Timex MK1 Aluminum Chronograph 40 mm watch, reference number TW2T10900. It is presented with a gray aluminum case that boasts stainless steel back and offers water resistance of 30 meters. The case measures 40 mm in diameter and is mounted onto a gray fabric strap, secured on the wrist with a tang buckle. This model is powered by a quartz movement. The gray dial with Arabic numerals features central hours and minutes, small seconds, chronograph, and date indication. The dial boasts the INDIGLO(R) Night-Light with Night-Mode feature.