The Nixon men's quartz watch has a contemporary design and practical features making it the perfect choice. The gorgeous black polyurethane strap contrasts elegantly with the grey hands. This timepiece has a buckle clasp and mineral crystal for durability. Case: Plastic Caseback: Screw-down Dial: Black Hands: Grey luminescent Markers: Black applied indices Strap/bracelet: Black polyurethane Clasp: Buckle Crystal: Mineral Crown: Push/pull Movement: Quartz Water resistance: 10 ATM/100 meters/330 feet Case measurements: 35 mm wide x 11 mm thick Bracelet measurements: 20 mm wide x 8.5 inches long Model: A119524-00 All measurements are approximate and may vary slightly from the listed dimensions. Men's watch bands can be sized to fit 7.5-inch to 8.5-inch wrists.. A screw-down crown (knob) creates a water-resistant seal. To unscrew the crown, turn counter-clockwise and pull/push into position to set time, date, and other functions. To close the crown, press it against the case and turn clockwise.