Casio is going great guns with its G-Shock watch range, with a swathe of new designs and devices to celebrate its 40th anniversary. We've had G-Shocks covered in 18K gold and rubies, and now there's an MT-G series timepiece adorned with a rainbow effect.
However, the G-Shock MTG-B2000YR isn't designed around the sky-based phenomenon, its great-looking, multi-coloured bezel represents the lights of a city at night. According to Casio, anyway.
