Tissot T-Sports Collection Swiss Quartz Chronograph Watch With A Black Embossed Cow leather Strap, 45mm Rose Gold PVD Plated Case, Black Coloured Dial & Date Window. The PRS 516 is simply the most prestigious sports watch within the Tissot collection. This timepiece dates back to 1965, featuring design details inspired by classic sports cars including a perforated bracelet and piston-shaped pushers. The PRS 516 is truly a pioneer watch that will never go out of style. 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. Lugs: 22.00 Energy: Quartz EOL Model: ETA G10.212 Caliber: 13 1/4''' Dial: HMsSD Battery: battery type Renata 394 Functions: EOL (battery end-of-life indicator), central 60-seconds chronograph hand, 30-minutes and 1/10 of a second counters, ADD and SPLIT functions Strap/Chain reference: T600047341 Buckle: interchangeable quick release bracelet, butterfly clasp with push-buttons Strap length 6h: 120.00 Strap length 12h: 75.00