Compare Marathon USAF Swiss Made Quartz Navigator Watch with Tritium Illumination #WW194013-BK-USAF Movement: Swiss ETA quartz (battery operated) Case: Fibershell, 41mm diameter x 13mm thick. 47.5mm tip to tip Crystal: Sapphire Band: Nylon strap with buckle. 20mm Island Watch Price: $441.00 Was: Sale Price $441.00