Glam Rock Men's GR33001 SoBe Black Dial Green Silicon Watch Swiss quartz movement Mineral crystal sapphire coated; brushed black ion-plated stainless steel case; black carbon fiber case cover with interchangeable green and black ion-plated stainless steel case covers with tachymeter scale Date function Black dial with grey hands arabic numerals; green second hand and hour markers; black carbon fiber case cover with 1 screw; luminous; black accent on crown; just click interchangeable case cover system Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving