Rare VTG Casio Baby-G BG-163 (2487) Green Dancing Dolphin 。Rare NOS Casio Baby-G BG-163 ICERC special edition featuring a translucent orange jelly resin case and strap with official International Dolphin & Whale Eco Research Network collaboration caseback engraving. This early-2000s Baby-G release showcases the iconic “ALL AS ONE” conservation theme along with the dolphin and whale emblem exclusive to select ICERC partnership models. Shock resistance, 100-meter water resistance, stopwatch, countdown timer, alarm, hourly signal, EL backlight, and Module 2487 multi-color illumination effects that display vibrant red, yellow, and green lighting. The compact rounded case and translucent construction capture the bold Y2K styling that made vintage Baby-G models highly collectible. New old stock, unworn in pristine conditions with original Baby-G tin box and user manual included. New battery installed. Functions operate properly including backlight and display features. A standout collector piece for vintage Casio, Baby-G, and ICERC enthusiasts.