Tissot T-Sports Collection Swiss Quartz Watch With A Black PVD Coated Stainless Steel 45mm Case, Black Embossed Cow Leather Strap, Black Coloured Dial & Date Window. This Black Gents sports chronograph watch will be the enhance any mans fashion. With Some unique features including, 30-minutes and 1/10 of a second counters, ADD and SPLIT functions, central 60-seconds chronograph hand, EOL (battery end-of-life indicator) & butterfly clasp with push-buttons it will be admired by many. Sapphire Glass A sapphire crystal gives a watch the following properties: extremely high resistance to impact and superior screen and hand readability thanks to its transparency. Because it is the strongest material after diamonds, it is used in fine timepieces for its anti-scratch prowess. Sapphire crystals can take many forms and give the watch a variety of looks: flat, domed, concave or ground. Water Resistance All Tissot watch cases undergo several tests, including a water resistance check. Tissot tests the watch's ability to resist impacts and pressure, as well as the penetration of liquids, gas and dust by replicating the real-life conditions in which the watch may find itself. Battery type Renata 394 Thickness: 12.1mm Weight: 107g