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[ProTrek 2022] PRW-51NJ x Nature Conservation Society of Japan

Casio Computer’s outdoor watch “PRO TREK” and a new model “PRW-51NJ” in collaboration with the Nature Conservation Society of Japan will be released. The theme is “Satoyama”. Scheduled to be released on March 25, the price is 64,900 yen.

The PRW-51NJ uses biomass plastic for the case, band, and back cover, similar to the PRW-61 series, which will also be released on March 25th. This is the first Casio watch to attempt to reduce CO2 as a product life cycle by incorporating raw materials derived from natural plants.

In addition, the collaboration model PRW-51NJ includes a replacement cross band made of recycled PET material made from PET bottles. For this band, I drew a camouflage pattern with the motif of Satoyama and the creatures living there, which are associated with the “Satoyama Revitalization Activities” undertaken by the Nature Conservation Society of Japan.

The base model is the PRO TREK climber line “PRW-50”, which is a combination style of analog and digital. On the dial of PRW-51NJ, at 7 o’clock, 8 o’clock, and 9 o’clock, dots of fluorescent paint that imaged “firefly”, which is also a symbol of Satoyama, are applied. The band and play ring are decorated with the Nature Conservation Society of Japan logo, the back lid is decorated with the endangered bird “Sashiba”, and the package is also special.


PRW-51Profile / Casio ProTrek
Average Amazon Price:  may be available
(yes, we may earn a commission on qualifying purchases from our links to Amazon).
Year of first release: 2022
The most distinctive specs:
— Biomass plastics in the case, band, and case back 
(the environmentally friendly biomass plastics are produced using materials derived from castor seeds and corn, as well as other raw materials)
— Solar Powered (Tough Solar provides constant behind-the-scenes power)
— Radio-controlled Watch; Multi band 6 (additional way for time sync. This watch receives time calibration radio signals that keep the displayed time accurate)
— Thermometer (can measure and display the outside temperature in a range from -10 C to 60 C)
— Barometer (measures the air pressures and displays tendencies in the weather)
 Altimeter (The electronic mechanism “estimates” the altitude based on the air pressure)
 Digital compass (measures and displays direction as one of 16 points)
Other colors and full specs: PRW-51 Wiki Page

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