This Angular Momentum Illum/IV-2 collection is a fashion statement all on its own. Its stylish design adds a trendy feel to your collection. - Case: Stainless steel - Dial Color: Black - Dial markings: Arabic numerals - Strap: Black natural rubber - Clasp: Buckle - Calendar: Date display at 4:00 - Movement: Swiss made quartz movement - Crystal: Synthetic sapphire - Water resistant to 100 meters - Case Dimensions: 38mm wide x 13mm thick - Strap Dimensions: 20mm wide x 8.5 inches long - Special Features: Sweep second hand/Screw locked steel crown/Luminous hands and hour markers/Patented Revolving-Disk-System (R.D.S)All measurements are approximate and may vary slightly from the listed information. Men's watch bands can be sized to fit 7.5 inch to 8.5 inch wrists.