Casio Pro Trek PRW-6900Y-1JF Men’s Watch – JDM Solar-powered, Radio-controlled, Textured Black Dial, Steel and Bio-Resin – Triple Sensor, Multiband 6, Water-resistant to 100m (49.6 x 44.8 x 14.7 mm)

The Casio Pro Trek PRW-6900Y-1JF (JDM edition for the Japanese domestic market) features an analogue-digital design inspired by camping and survival tools, with a stainless steel bezel featuring sharply defined edges with grey ion-plated finish and a dial with a textured surface reminiscent of cast iron. It features a hand on the 10 o’clock sub-dial shaped like a camping knife blade and a seconds hand with orange markings, powered by Tough Solar, with Multiband 6 radio-controlled time synchronisation and a Triple Sensor system (digital compass, altimeter/barometer and thermometer), as well as a Neobrite coating and dual white Super Illuminator LEDs.

Its dimensions of 49.6 x 44.8 x 14.7 mm and lightweight construction of 65 grams are achieved by combining the metal bezel with a case, caseback and soft urethane strap made from bio-based resin (biodegradable plastics), suitable for wrist sizes from 145 to 215 mm. It features a mineral crystal, a screw-lock crown, resistance to low temperatures down to -10 °C and water resistance to 10 bar (100 metres), offering a battery life of approximately 6 months under normal use and up to 25 months in power-saving mode.

Technical specifications:

• Reference: PRW-6900Y-1JF (JDM version – Japanese Domestic Market)
• Movement and power source: Analogue-digital Tough Solar quartz (solar-powered)
• Time synchronisation: Multiband 6 radio-controlled with automatic reception (Germany DCF77, UK MSF, USA WWVB, Japan JJY and China BPC) and manual
• Digital compass: 16-point measurement (0 to 359°, 1° increments), 60 seconds of continuous measurement, north indicator needle, bidirectional calibration and magnetic declination
• Altimeter: Range from -700 to 10,000 m (1 m increments), altitude difference needle, 30 manual memory slots and automatic recording of maximum, minimum and cumulative elevation change
• Barometer: Range from 260 to 1,100 hPa (1 hPa increments), pressure difference needle, trend graph and audible alarm for barometric changes
• Thermometer: Range from -10 to 60 °C / 14 to 140 °F (in 0.1 °C / 0.2 °F increments)
• Case dimensions (Length x Width x Height): 49.6 x 44.8 x 14.7 mm
• Weight: 65 g
• Dial: Cast-iron-style textured finish, sub-dial at 10 o’clock and seconds hand with orange markings
• Case and bezel material: Bio-based resin and stainless steel bezel with grey ion-plated finish
• Glass: Mineral glass
• Crown: Screw-down crown
• Strap: Soft urethane made from bio-based resin (biodegradable)
• Compatible wrist size: 145 to 215 mm
• Water resistance and environmental resistance: 10 bar (100 metres) and resistance to low temperatures (-10 °C / 14 °F)
• Time display: Analogue 3-hand (minute hand advances every 10 s) and digital (hours, minutes, seconds, month, date and day) in 12- and 24-hour formats
• Luminescence and illumination: Neobrite and automatic dual white LED ‘Super Illuminator’ (1.5 or 3 s) for dial and digital display
• World time: 29 time zones (29 cities + one-touch UTC access), local city change and daylight saving time adjustment
• Stopwatch: 1/100th of a second up to 23:59'59.99'' (elapsed time, split time and 1st and 2nd place)
• Timer: 1-second countdown, adjustable from 1 to 60 minutes (in 1-minute increments)
• Alarms and calendar: 5 daily alarms, hourly time signal and full automatic calendar until the year 2099
• Additional functions: Temporary hand stop during measurements, automatic hand correction, button mute, charge level indicator and power-saving mode
• Battery life: Approx. 6 months with normal use after a full charge; approx. 25 months in total darkness with power-saving mode activated
• Accuracy: ±15 seconds per month (without signal calibration)