6498-1
ETA 6498-1 UNITAS
16 1/2 '''
Diameter 36,60 mm
Height 4,50 mm
Hours, minutes, small second
Hunter calibre, crown at 3 o'clock
Manual winding
Frequency: 18'000 vibrations per hour; 2,5 Hz
17 jewels
Regulator system ETACHRON
Typical power reserve: 52 hours