Casio PRW-35Y-1BER PRO TREK Men's Watch Black • Tough Solar & Multiband 6 • Digital Compass & Altimeter

The Casio PRW-35Y-1BER from the PRO TREK line is a high-performance outdoor men's watch featuring an extensive sensor system for demanding adventures in nature. The case and strap are crafted from bio-based resin with a stainless steel bezel finished in grey ion plating — lightweight, robust, and sustainably manufactured. The soft, slotted strap ensures excellent breathability and optimal wearing comfort even during intense outdoor use.

The digital time display uses a Super Twisted Nematic (STN) LCD with white LED backlighting for outstanding legibility in any terrain. Thanks to Tough Solar charging and Multiband 6 radio-controlled timekeeping, the watch is always precisely synchronised to atomic clock time and requires virtually no maintenance. Large function buttons provide direct one-touch access to the compass, barometer/altimeter, and thermometer. The watch also offers a stopwatch, countdown timer, five daily alarms, world time, and sunrise/sunset display — everything outdoor enthusiasts need.

Key Features of the Casio PRW-35Y-1BER

• Tough Solar & Multiband 6: Solar-powered with automatic radio time synchronisation via six international signal stations for consistently accurate timekeeping without battery replacement.
• Triple Sensor: Integrated digital compass, altimeter (up to 10,000 m), and barometer/thermometer for reliable navigation and weather monitoring in the field.
• Water-resistant to 100 m: High water resistance combined with a bio-based resin case and stainless steel bezel for rugged outdoor use.

Care Instructions for Wristwatches

Care & Cleaning

• Daily: Wipe case and bracelet with a soft, dry cloth to remove dirt and perspiration.
• Water-resistant watches: Clean with mild soapy water and a soft brush, rinse, dry thoroughly.
  Important: Screw the crown down firmly beforehand!!!
• Not water-resistant: Clean only dry or slightly damp, do not use water or cleaning agents.
• Avoid: Harsh chemicals, perfume, cosmetics and heat.
• Leather straps: Do not soak, clean only slightly damp and allow to dry away from heat.
• Water resistance: Do not wear in the shower or bath, have it tested annually.
• Battery (quartz): Have a depleted battery replaced immediately.
• Mechanical watches: Service by a master watchmaker every 5 years.

Storage & Handling

• Store the watch separately, not in direct contact with other jewellery (risk of scratching).
• Place mechanical watches on a flat surface when winding, do not leave the crown pulled out.