The lightweight and accurate CAMMENGA MODEL J582T TRITIUM WRIST COMPASS provides easy on-the-go referencing for land navigation at day or night. Constructed with a machined aluminum casing for durability in the most demanding conditions. Easy to read 10-degree phosphorescent graduations are enhanced with Tritium Micro Lights for visibility in total darkness, maintenance free, for over ten years. Includes a heavy-duty nylon wristband.