HEBDOMAS PERSEUS, 8-DAY POCKET WATCH, NEW STOCK, SWISS CIRCA 1980 Age: circa 1980 Material: silvered metal Diameter: 50 mm Case: worked with shield Movement: mechanical 8-day Escapement: anchor Weight: Rotating: yes Overhauled: yes Notes: new with label HEBDOMAS PERSEUS, AN 8 DAY POCKET WATCH, NOS, NEW OLD STOCK, SWITZERLAND 1980 CIRCA