GR Vacheron Constantin's multi-function universal series 7920v/210A-B334 and other 7900v family models function date, dual time zone, time movement replica automatic mechanical 5110DT movement material is made of 904L stainless steel and once again becomes the focus. Size 41mm strap quick-release steel head. Easy to replace It is said that you can go to the hall, you can go to the kitchen, you can keep your loneliness, and you can achieve glory. Multi-color palette selection, and three different styles for perfect matching (steel belt is versatile) (cowhide can be formal wear) (rubber belt sports),,vacheron, cowhide