Sprout Men's ST/3601BKBKBK Water Resistant Black Tyvek Strap Water-Resistant Bio-Degradable Watch 45 mm black corn resin case with engraved white arabic numeral markers on bezel; gunmetal aluminum crown Black tyvek strap, padded with matching stitching and black corn resin buckle closure Black dyed genuine bamboo dial with silver-tone arabic numeral and stick hour indexes and day/date function window Luminous tip filled silver-tone hour, minute and stick second hands Water resistant to 165 feet (50 M): suitable for swimming and showering