Marathon Navigator Unisex Pilot's Quartz Watch w/ Date Blue Yonder SSNAV-D 41mm Bi-Directional Blue FKM Rubber. S. Air Force and the skies they protect. This limited-edition collectable watch draws its name from the official U.S. Air Force song's opening line Off we go into the wild blue yonder capturing both history and high performance in one mission-ready design. The Blue Yonder features a durable stainless steel case high-torque quartz movement and a bi-directional 12-hour bezel all engineered to endure the rigours of high altitude. Finished in a striking blue colourway the Blue Yonder is colour-matched with our new blue FKM 3-piece rubber strap kit and comes with a complimentary blue travel pouch. Specifications for Marathon Navigator Unisex Pilot's Quartz Watch w/ Date Blue Yonder SSNAV-D: Manufacturer: Marathon Application: Outdoor Gender: Unisex Dial Color: Blue Illumination Color: Green Band/Strap Color: Blue Case Color: Stainless Steel Marker/Numeral Color: White/Blue Case Finish: Parkerized Case Material: 316L Surgical-Grade Stainless Steel 316L Surgical Grade Stainless Steel Case Diameter: 41 mm Bezel Finish: Blue Band/Strap Material: FKM Rubber Wrist Band Type: Strap Movement: ETA F06.412 HeavyDrive-PreciDrive Quartz Illumination Type: Tritium Water Resistance Level: Waterproof Water Resistant Mark: 10 atm Package Contents: Marathon Navigator Unisex Pilot's Quartz Watch w/ Date Blue Yonder SSNAV-D Marathon WW194013SS-1301: Navigator Unisex Pilot's Quartz Watch w/ Date Blue Yonder SSNAV-D 41mm Bi-Directional Blue FKM Rubber