Casio Watch 50th Anniversary Commemorative Model Incorporating Casio's Will to Create New Value and Continue Taking on Challenges The theme is "The Spirit of Manufacturing, Creating One from Zero" Casio's first wristwatch, the "CASIOTRON," released in 1974, was the world's first digital watch equipped with an auto-calendar function.
Since then, Casio has always challenged itself to seek originality and innovation, and the Casio spirit of creating "from 0 to 1" has been passed down without interruption, accelerating the evolution of wristwatches with developments such as solar charging systems, radio reception functions, and smartphone links.
To create something from nothing, no matter how meticulously crafted something may seem perfect, you must have the courage to break away from current values, add new ideas and thoughts, and continue to take on new challenges.
The commemorative model is designed with a unified black and gold color scheme to evoke the image of a "light of beginnings" that creates new value. It is also equipped with Tough Solar, which means it can be powered by sunlight or fluorescent light, and comes in special packaging made from recycled materials, making it an environmentally friendly model.
This is an anniversary model with a special color and design.

・ 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, Received radio waves: JJY, Frequency: 40kHz/60kHz (Fukushima/Kyushu station compatible model) Received radio waves: WWVB, Frequency: 60kHz Received radio waves: MSF/DCF77, Frequency: 60kHz/77.5kHz 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 retraction 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, 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 a dark place, 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: Approximately 6 months When using the function: Approximately 25 months When in power saving mode
Model Number: PRW-6900ZE-1JR


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Casio  Clock  Silver  Men's Casio Pro Trek PRW6900YL5