These are the latest additions to the PRO TREK lineup of Triple Sensor watches with various types of bands for real outdoor adventurers. A choice of bands makes them the ultimate in modern fashion and practical function.
The PRG-S510 model at the top features a band made of soft resin for a comfortable fit, embedded with carbon fiber for superior tensile resistance, cut resistance, and toughness. This plus a sapphire glass crystal that resists scratching, make this model the perfect choice for outdoor wear.
The PRG-550BD and PRG-250BD models below come with durable stainless steel bands with a black ion plated (IP) finish.
All models come equipped with a Tough Solar system that taps the energy of sunlight for power.

• Mineral Glass / Neobrite
• 100-meter Water Resistance ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???Ç??’???Ç??’??Ǩ
• Black Ion-plated Stainless Steel Bands
• Resin Case / Bezel Material
• Double-lock, 3-fold Clasp
• LED light, Full auto LED light, afterglow, LED:White
• Solar powered
• Low-temperature resistant (-10’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶ÝC/14 ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶ÝF)
• Digital compass, Measures and displays direction as one of 16 points,
• Measuring range: 0’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶Ý to 359’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶Ý, Measuring unit: 1’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶Ý,
• 20 seconds continuous measurement, Hand indication of north,
• Bidirectional calibration and northerly calibration function,
• Magnetic declination correction
• Altimeter, Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.),
• Measuring unit: 5 m (20 ft.), Hand indication of altitude differential,
• Manual memory measurements (up to 14 records, each including altitude, date, time)
• High Altitude / Low Altitude memory, Total Ascent / Descent memory,
• Others: Reference altitude setting, Altitude tendency graph,
• *Changeover between meters (m) and feet (ft)
• Barometer, Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg),
• Display unit: 1 hPa (0.05 inHg), Hand indication of pressure differential,
• Atmospheric pressure tendency graph,*Changeover between hPa and inHg
• Barometric pressure change indicator
• Thermometer, Display range: -10 to 60 ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶ÝC (14 to 140 ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶ÝF),
• Display unit: 0.1 ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶ÝC (0.2 ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶ÝF),
• Changeover between Celsius (’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶ÝC) and Fahrenheit (’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???’??Ǩ’???¶ô¶ÝF)
• World time, 29 time zones (29 cities + coordinated universal time), daylight saving on/off
• 1/100-second stopwatch, Measuring capacity: 59'59.99'',
• Measuring modes: Elapsed time, split time, 1st-2nd place times
• Countdown timer, Measuring unit: 1 second, Countdown range: 60 minutes,
• Countdown start time setting range: 1 to 60 minutes (1-minute increments)
• 5 daily alarms
• Hourly time signal
• Battery level indicator
• Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
• Full auto-calendar (to year 2099)
• 12/24-hour format
• Button operation tone on/off
• Regular timekeeping:’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???Ç??’???Ç??’??ǨAnalog 3 hands: Hour, minute (moves every 10 seconds), second,’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸’???Ç??Ç?Çï’???Ç??’???Ç??’??ǨDigital: month, day, day of the week
• Accuracy: ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ôÇ÷¶ô¶¦¶ôÇû¶ô¶¦¶ô¶¸¶ô¶¦¶ôÇû¶ô¶¦¶ôÇñ15 seconds per month
• Approx. battery operating time: 6 months on rechargeable battery (operation period with normal use without exposure to light after charge), 23 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
• Size of case: 56.8 ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ô¶«’???Ç??Ç?Çï’???Ç??’???’???’???Ç?ǨÇ?Çï’???€©’???Ç?ǨÇ?Çï’???Ç?? 49.3 ’???Ç??Ç?Çï’???’??Ǩ’???’???’???Ç?ǨÇ?Çï’???¶ô¶«’???Ç??Ç?Çï’???Ç??’???’???’???Ç?ǨÇ?Çï’???€©’???Ç?ǨÇ?Çï’???Ç?? 14.4 mm
• Total weight: 147 g