TISSOT WATCH T090.310.11.111.00
Sapphire glass in the watch was made in a laboratory by melting aluminium oxide (Al2O3) in the presence of hydrogen and oxygen at 2000 °C. After crystallisation into the corundum 'pear', it's cut and further processed into the desired shape and size. Sapphire glass is the hardest glass used in watches. It would be second behind diamond on the scale of mineral hardness, so it can only scratched by diamond.
CASE FEATURE: Stainless steel case / Water-resistant up to a pressure of 5 bar (50 m)
CRYSTAL: sapphire crystal
MOVEMENT: Swiss Quartz
DIAL COLOR: Silver tone
STRAP: Stainless steel