[PROTREK 2023] PRW-61LD-5 and Phosphorescence Dial

Let us to overlook the PRW-61LD-5, the latest addition to the PROTREK collection released in October. While it may appear as a mere variation of the PRW-61 case, the Japanese have introduced an innovative approach to nocturnal explorations – enhancing the dial’s visibility in the dark.

CASIO engineers have achieved a significant breakthrough by combining solar power with a phosphorescent dial. This ingenious integration allows the light-accumulating coating (known as Neo-Brite) to absorb light without hindering the battery’s charging process. Consequently, the entire display substrate emits a gentle green radiance, complementing the existing coating on the hands and hour markers.

Although it may not entirely replace the dual LED backlighting of the PRW-61, the PRW-61LD-5 possesses an aesthetic allure that will undoubtedly captivate outdoor enthusiasts. This alternative, devoid of obtrusive elements, is a true blessing for those engaged in extended outdoor activities.

The case, strap, and back cover of the PRW-61LD-5 are crafted from bioplastic, an environmentally friendly material that exhibits durability comparable to traditional rubber. This fact has been extensively proven.

Belonging to the advanced segment of the PROTREK line, the PRW-61 series offers a multitude of features, including solar power, Multi Band 6 technology, and the latest generation of the triple sensor (comprising a barometer/altimeter, thermometer, and digital compass). Additionally, it provides an ascent/descent log and basic functionalities such as world time, timer, stopwatch, alarm clock, calendar, and 100-meter water resistance. The approximate price of this remarkable timepiece is $400.