Timex Marlin Chronograph Tachymeter pairs a 40 mm stainless-steel case with a three-register chronograph and tachymeter scale for precise timing and everyday wear. Key attributes: Silver | Stainless steel | Water resistant to 50 meters | Quartz movement | Chronograph (stopwatch) | Date display at 4 o'clock | Quick-release stainless-steel bracelet | Fold-over clasp with push button | Silver-tone dial with three subdials | Tachymeter outer track | Polished stainless-steel finish | Dimensions & fit: Case diameter: 40 mm | Case height: 13 mm | Band width: 20 mm | Composition & care: Stainless steel case | Stainless steel bracelet | To maintain water resistance, do not press any buttons while underwater.