Vintage, Rare Citizen Black Case Chronograph. Japan Citizen 8100A Automatic Chronograph machine , All functions are working correctly. Chronograph works perfect. Practical calendar works. Dimensions: 39 mm without crown 40 mm with crown Lugs: 18 mm Lug to lug: 42,5 mm No box and paper Photos are part of the description. Please look at them carefully. There are some melting and straches at the case and the dial as seen on photos. We do not guarantee water resistance on vintage watches. Please use photos as part of the description. Accuracy of + or - 5 minutes per day is acceptable for vintage watches. Please, be aware of customs duty. Customs duties are the buyer's responsibility and beyond the control of sellers. Please also check my other watches.