Casio presents the new Pro Trek PRW-3500 line of digital watches, waterproof to 20 atmospheres. Radio-controlled, equipped with solar charging and the latest-generation Triple Sensor Ver.3 (comprising a barometer for measuring atmospheric pressure and temperature, a digital directional compass and an altitude meter), these models offer precision and accuracy in the detection of environmental values and data. Four variants are available: PRW-3500-1ER, with resin strap (€299); PRW-3500Y-2ER, with resin strap and negative dial (€319); PRW-3500Y-4ER, with orange resin strap (€319); PRW-3500T-7ER, with titanium case and bracelet (€419). For their launch, the company has partnered with the Italian Alpine Club (CAI): the new PRW-3500-1ER, in particular, will be on the wrists of CAI volunteers - hikers, ski mountaineers and members of the Corpo Nazionale Soccorso Alpino e Speleologico.