- Brand: CASIO - Model Name: PRO TREK 1000TJ - Features: Solar-powered radio-controlled watch - Water Resistance: 10-bar water resistance - Color: Silver - Back Case: Stainless steel - Band Material: Stainless steel Thank you for viewing. This is a Pro Trek I purchased about 20 years ago. At the time of inspection, it was confirmed to be working without any problems, and the light also functions. It is a solar-powered radio-controlled watch equipped with a triple sensor, capable of measuring barometric pressure, altitude, temperature, and direction. It also has alarm, world time, and stopwatch functions. You can collect data during activities like mountain climbing. (Data can be saved within the watch, but cannot be saved to another medium as it cannot connect to smartphones or PCs.) The item was used personally by the seller, and due to inspection and photography, the lighting, color, and feel of use may differ slightly. Inspections and measurements are performed by the seller, so there may be oversights of dirt, scratches, or size discrepancies. Please refrain from purchasing if you do not understand used items or are looking for a product close to new. Returns due to differences in image or size will be subject to the buyer's responsibility for shipping costs.