The storm sentini is from our premium storm black collection this glamorous timepiece has a silver coloured strap made from high grade stainless steel and a black mother of pearl face the sentilli is accented with compacted sparkling crystals and features swiss movement scratch resistant sapphire glass and a semi precious onyx stone in the crown waterproof to 50mspecificationr features swiss movt sapphire glass onyx crown mother of pearl dialr movement swiss movementr case material stain