Vintage, Rare Citizen Black Case Chronograph. It will look very cool on your wrist with a very stylish leather strap. Japan Citizen 8100A Automatic Chronograph machine , Dimensions: Diameter: 37,7 mm without crown 39,8 mm with crown Lugs: 18 mm Lug to lug: 44 mm No box and paper Photos are part of the description. Please look at them carefully. We do not guarantee water resistance on vintage watches. The calendar and day change smoothly in 24-hour increments. However, while the practical calendar setting can be adjusted using the winding handle, the push-button date setting function doesn't work. 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.