Marathon 41 mm Maraglo Navigator Watch w/Date Ballistic Nylon Black. The MaraGlo Pilot's Navigator with Date includes a sapphire crystal steel crown and crystal retaining ring as well as an easy-access battery hatch. Specifications for Marathon 41 mm Maraglo Navigator Watch w/Date: Manufacturer: Marathon Application: Casual Gender: Unisex Dial Color: Black Illumination Color: Green Band/Strap Color: Black Case Color: Black Marker/Numeral Color: White Case Finish: Matte Case Material: Sapphire Case Diameter: 41 mm Bezel Finish: MaraGlo Wrist Band Type: Strap Movement: ETA Movement F06 Included Accessories: Date Features of Marathon 41 mm Maraglo Navigator Watch w/Date: High-torque movement with an EOL (end-of-life) indicator to notify you when it is time to change your battery MaraGlo appliqus at the hour markers as well as on the hour and minute hands providing low-light illumination 41mm high-impact composite fibreshell case for ultra-light durability and a 12-hour bi-directional bezel Package Contents: Marathon 41 mm Maraglo Navigator Watch w/Date Marathon WW194013BK-2101: 41 mm Maraglo Navigator Watch w/Date Ballistic Nylon Black