Metropolitan Black Brass Case Men's Watch w/Interchangeable Strap is a great way to keep track of the time as well as the daily progress of movement and activity. Featuring 42mm brass round case, black dial, two sub dials, inner stick indices, outer stick and number indices, activity tracker, sync with phone, no charging necessary, INDIGLO night-light and interchangeable straps of silicone and canvas with buckle clasp. Water resistant to 5 ATM.