The Tissot Gentleman Powermatic 80 Silicium has an exhibition case back, allowing you to admire the Powermatic 80 movement using a silicon balance spring for greater longevity, heightened precision and resistance to magnetic fields. The movement boasts an impressive 80 hours power reserve when most automatic movements have a power reserve of around 40 hours. Lastly, the rotor is finely engraved with the “Waves of Time” decoration. about-the-watch : reference T1274071603101 weight 87 collection T-Classic gender GENT water-resistance Water-resistant up to a pressure of 10 bar (100 m / 330 ft) warranty 2 Years of Warranty case-crystal : thickness 11.5 case-options see-through caseback length 40.00 width 40.00 case-material 316L stainless steel case lugs 21.00 case-shape ROUND crystal Domed scratch-resistant sapphire crystal with antireflective coating movement : energy Automatic jewels 25 model POWERMATIC 80.811 movement Swiss automatic caliber 11 1/2''' dial HMsD diameter-mm 25,6 power-reserve power reserve up to 80 hours dial : dial-color silver indexes indexes strap : strap-color Brown strap-back Synthetic strap-front Alligator-style grained cowhide strapchain-reference T600045399 strap-details Leather buckle interchangeable quick release bracelet, butterfly clasp with push-buttons strap-length-6h-mm 120.00 strap-length-12h-mm 75.00