The Casio Pro Trek Blue Moment Series is inspired by the natural phenomena of the sky’s color in the short time after dawn and sunset. The all-digital PRW-3100YT-1JF and the analog-digital PRW-6100YT-1BJF have blue lettering on their black IP stainless steel bezels along with blue-tinted STN LCD displays. The PRW-6100YT-1BJF has some additional blue accents on the outer case. Both models feature a lightweight titanium metal band with black IP finish, sapphire crystal with non-reflective coating, 100-meter water resistance, Triple Sensor Version 3 (with altimeter, barometer, compass, thermometer), Tough Solar power, and Multi-Band 6 radio wave timekeeping. List price is ¥78,000 JPY for the PRW-3100YT-1JF and ¥98,000 JPY for the PRW-6100YT-1BJF. The Pro Trek Blue Moment watches are an October release for Japan.