CASIO WAVE SPORT PATH FINDER, a digital watch with Tough Solar power and triple sensor functionality, offering 100m water resistance. It features a compass, barometric pressure/thermometer, altimeter, world time, stopwatch, timer, alarm, and other multi-functions. All functions are working correctly. It's solar-powered, so there are no issues for daily use, but the built-in battery is weak. Replacement Battery: Panasonic CTL 1616 (Coin-shaped lithium-ion rechargeable battery) Please refer to the manufacturer's website for the instruction manual (English version). As it's a foreign specification, there doesn't seem to be a Japanese instruction manual. https://www.casio.com/content/dam/casio/global/support/manuals/watches/pdf/30/3043/qw3043_EN.pdf - Brand: CASIO - Model: PATH FINDER - Features: Triple Sensor - Battery: Tough Solar - Water Resistance: 100m - Color: Black - Display: Digital - Size: Men's Scratches/Cracks...None Operation...Good Accessories...None