This is a rare 1950's Everard Extra-Fort 18K rose gold chronograph. It has a few display scratches, but it is almost unused. There are no accessories. *The upper chrono button is used to start, stop and reset the chronograph, while the lower button acts as a sliding hack mechanism that locks all the chrono buttons at the same time. The lower button serves as a sliding hack mechanism that simultaneously locks all the chrono buttons.