Sevenfriday Sevenfriday, turbo automatic square automatic mechanical watch, men, close bottom, stainless steel case, Japanese Citizen 82S7 movement, size 47.5mm*47m*14.5mm, stainless steel case, calfskin strap, original buckle. The sf we made is basically the same as the counter. The same movement, the same material. It can be said responsibly that if you wear it, it is genuine. Even if there is no counter in mainland China, you can go to a counter in Hong Kong. In fact, they don't understand it. More than one customer has gone to the counter to unload the strap. The same models on the market have different qualities, don't be fooled!