G-Shock China is holding some sort of promotion with the G-Shock Origin Necklace, of which there appears to be a gold and silver version. The limited edition necklace has a jeweled pendant in the shape of a 5000-5600 series case. On Weibo, they state that the (silver) necklace is limited to 500 pieces. (We’re not sure if this is a promotional giveaway included with the purchase of a watch, a giveaway contest, or a lottery to purchase the necklace.) For the rules and more information regarding this promotion, you need to follow the official G-Shock (China) account on WeChat and check there.