Casio will celebrate its 50th anniversary of wristwatches in 2024.
To commemorate this anniversary year, Casio's major watch brands have released a limited edition model that expresses the universal yet ever-changing themes of "sky and sea."
With functionality that is in tune with the times and lifestyles, and a particular CMF design (color, material, finish), this special edition symbolizes the history of the product and the challenges that lie ahead.
The blue and gold colors express the image of the sky and sea enveloped in light.
This anniversary model embodies the origins and evolution of the past 50 years with special colors and designs.

・ Tough Solar (solar charging system)
・ 10 ATM water resistance
・ Radio wave reception function: Automatic reception (up to 6 times/day) (up to 5 times/day for Chinese radio waves) / Manual reception, <Japan> Received radio waves: JJY, Frequency: 40kHz/60kHz (Fukushima/Kyushu station compatible model) <North America> Received radio waves: WWVB, Frequency: 60kHz <Europe> Received radio waves: MSF/DCF77, Frequency: 60kHz/77.5kHz <China> Received radio waves: BPC, Frequency: 68.5kHz *If the home time setting is set to a city that can receive radio waves, the station corresponding to the city will be received.
The time difference is set according to the city you select.

- Automatic needle position correction function - Needle evacuation function (manual, automatic (when measuring altitude, air pressure, temperature))
World time: Time display for 29 cities (29 time zones, daylight saving time setting function) + UTC (Coordinated Universal Time), Home city swap function, UTC direct call function Direction measurement function: Measures 16 directions and direction angles (0 to 359°), continuous direction measurement (60 seconds), north direction pointer function, magnetic declination correction function, direction correction function (2-point correction)
Altitude measurement function/relative altimeter (measurement range: -700 to 10,000m, 1m unit), altitude difference indicator (measurement range 1: 100m / 5m unit, measurement range 2: 1,000m / 50m unit), altitude trend graph display, measurement interval setting function (5 seconds / 2 minutes), altitude memory (manual memory for up to 30 measurement dates, times and altitudes), automatic recording data (maximum / minimum altitude, auto cumulative (ascent / descent) memory)
Barometric pressure measurement function (measurement range: 260 to 1,100 hPa, 1 hPa unit), barometric pressure trend graph display (displays the past 20 hours), barometric pressure difference indicator (measurement range: ± 10 hPa/1 hPa unit), barometric pressure trend information alarm (notifies you with an arrow and sound when a significant change in barometric pressure occurs)
- Temperature measurement function (measurement range: -10 to 60°C, in 0.1°C increments)
・Stopwatch (1/100 seconds, 24 hour counter)
- Timer (set unit: 1 minute, maximum set: 60 minutes, measured in 1 second units)
- 5 time alarms - Hourly time signal - Battery indicator - Power saving function (When left in the dark, the display will turn off and the hands will stop moving after a certain period of time to save power)
・Fully automatic calendar ・12/24 hour display switching ・Low temperature resistance (-10℃)
・ Operation sound ON/OFF switching function
・ Double LED light: LED light for dial (with full auto light, super illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds)), LED backlight for LCD (with full auto light, super illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds))
Operating time from full charge without solar power generation: Approx. 6 months When using the function: Approx. 25 months when in power saving mode


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Casio  Chronograph  wristwatch  Silver  Casio PRO TREK PRW61