Blue steel screws, Exhibition Case Back Cover. 3 Hz (21,600 BPH).Any problem please write to us at first time, we can try the best to resolve all issues and satisfy you. Our working time is 12:00AM to 10:00PM in Monday to Friday (Beijing time). The item "Sugess 42mm Gustav Becker Ultra Thin 9mm Skeleton Mechanical Mens LUXURY Watch" is in sale since Wednesday, November 11, 2020. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watches\Wristwatches". The seller is "chwatches" and is located in Kwun Tong. This item can be shipped to United States, all countries in Europe, all countries in continental Asia, Canada, Australia.