1. Casio watches have no factory in Chinese mainland, but are produced in Japan, South Korea, Malaysia, Thailand and other places. Watches of the same model must come from the same factory. So the watches we buy, as long as they are of the same model, are all from the same factory. It won't make any difference because of the different places of purchase. 2. There is no localization problem with watches. The menu of Casio watches is only in English and numbers, which is universal. Unlike mobile phones, they need to be localized according to the market. For example, if Nokia phones are sold in China, they need simplified Chinese menus, Hong Kong-based menus and Japanese-based menus. The Hong Kong products of mobile phones are not easy to use, because the chip characters have to be refreshed when they are sold to the mainland. Moreover, this work is not done by the manufacturer, so it often happens that the function of the mobile phone cannot be fully realized, and even it often crashes. Moreover, the watch is an isolated product, which does not need external support and is not affected by position changes. At most, products designed for Japanese airwaves can't be timed when they arrive in China. It will not be unusable due to problems such as frequency system. Therefore, no matter where we buy a watch and use it, it is the same Casio! Generally, online shopping is basically parallel imports, so it is no problem to find a reputable merchant. People won't lose credibility just because they lied to you once. Be sure to ask him if he is licensed or parallel. If he says it's licensed, it's definitely a lie. Find another seller. If people say it is parallel imports, it is honest and reliable.