Casio PRO TREK Watch PRW-6611Y-1ER

Introducing the Casio PRO TREK PRW-6611Y-1ER, a mountain-ready watch built for those who take on demanding terrain without compromise. The aesthetic is pure darkness: a matte black resin case with matching black crown and side pushers, a vertically ribbed resin strap designed for grip and ventilation, and a deep black dial where rectangular indices and Arabic numerals at 9, 12 and 3 stand out in white luminescent finish. The main hands are wide and lume-filled for precise analog timekeeping, while the orange seconds hand provides the only splash of color across the entire watch. A second set of thinner white hands tracks the inner 24-hour ring. At the bottom of the dial, a rectangular LCD display clearly shows the day of the week and digital time, readable even under direct sunlight. The dark-treated stainless steel bezel carries white-engraved abbreviations of major world cities, turning the bezel into a functional world time reference tool. At 10 o'clock the orange BARO label and the adjacent TEMP indicator reflect the watch's environmental measurement capabilities, while the orange COMP logo at 2 o'clock signals the integrated digital compass.

Inside beats Casio module 5660, an ana-digi caliber powered by solar charging via Tough Movement technology, converting ambient light into energy without requiring battery changes under normal use. The backup cell is a CTL1616. The fifth-generation Triple Sensor includes an altimeter ranging from -700 to 9,000 meters, a barometer with trend graphs, a thermometer from -10 to +60 degrees Celsius, and a digital compass with magnetic declination correction. The watch also offers world time across 48 cities and 31 time zones, a stopwatch, countdown timer, five daily alarms, sunrise and sunset indicator, auto-calendar, and 100-meter water resistance. The combination of analog hands and digital display delivers a complete at-a-glance reading of time, date and environmental data in a single look.

PRO TREK is Casio's dedicated outdoor line, engineered from the outset for demanding environments including mountain hiking, climbing and exploration. Each model integrates the sensors needed to make real decisions in the field, with reinforced housings and materials built to withstand temperature extremes, impact and moisture. The PRW-6611Y-1ER represents the evolution of that philosophy into a darker, more refined design while preserving the full functionality that has made PRO TREK a benchmark for outdoor enthusiasts worldwide.

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Technical Specifications

Reference: PRW-6611Y-1ER
Module/Caliber: 5660
Type: Analog-Digital
Movement: Solar Quartz (Tough Movement)
Water Resistance: 100 meters
Case Material: Resin
Case Color: Matte Black
Strap Material: Resin
Strap Color: Black
Dial Color: Black
Crystal: Mineral
Illumination: LED
Dimensions: 51.5 x 51.6 mm
Thickness: 14.8 mm
Weight: 57.0 g
Functions: Altimeter (up to 9,000 m), barometer, thermometer, digital compass, world time (48 cities / 31 zones), stopwatch, countdown timer, 5 alarms, sunrise/sunset indicator, auto-calendar, dual analog-digital display, 24-hour ring
Battery: CTL1616 (solar rechargeable)
Made for: Men