Casio Oceanus OCW-520t waveceptor solar watch for sale: it charges in the light while wearing and the time is updated via the built-in receiver. They have dual time (display and dial), stopwatch, countdown, alarm clock, updating not only the exact time, but also automatically switch to summer/winter time, the case is made of titanium and the glass is impact-resistant and scratch-resistant, they are waterproof up to 10 ATM. A new battery was replaced with a min. warranty. 10 years. The strap can be adjusted, I will also include links for its possible extension. Made in Japan. 100% functional with minor signs of normal wear and tear. It can also be sent by post upon agreement.