This is a Casio Pro Trek PRW-3500Y-4. I bought it new and used it a few times. It's in beautiful condition with no scratches or stains. All accessories, including the box and wooden box, are included. I've stored it in a place where it's easy for indoor light to reach, so I don't think the charge has decreased. To prevent any problems, returns are not accepted. Thank you. <Product Description> A new model featuring 20-bar water resistance and a register ring has been released from the authentic outdoor gear Pro Trek "MULTI FIELD LINE." By combining a compass function that can measure direction continuously for 60 seconds with a metal register ring that uses a rotating mechanism to easily memorize the direction, a more understandable and practical compass function has been realized. The register ring has a textured, easy-to-grip shape to improve operability. In addition, by combining a new sensor and a Casio-original sensor IC with improved processing capabilities, the Triple Sensor Ver.3 (*) has dramatically improved the functions of the triple sensor, while also ensuring the highest water resistance among Pro Trek models, with 20-bar water resistance. This makes it suitable for use in more demanding water environments in outdoor scenes. The large direct buttons that can measure direction, barometric pressure/temperature, and altitude with a single push have a non-slip shape, allowing for stress-free operation even when wearing gloves. Furthermore, it is equipped with a variety of functions such as Multi Band 6, which receives standard radio waves from 6 stations around the world, Tough Solar, which operates with even a little light, and a barometric pressure trend information alarm that alerts you to sudden changes in barometric pressure. This is a new Pro Trek that combines functionality and practicality that can withstand use in various fields such as the sea and mountains. *What is Triple Sensor Ver.3? It is equipped with a newly developed small magnetic sensor that has achieved a 95% reduction in size and a pressure sensor with improved measurement accuracy. By combining this new sensor with a Casio-original sensor IC with improved processing capabilities, the functions of the triple sensor have been dramatically improved.