2804-2

ETA 2804-2
11 1/2 '''
Diameter 25,60 mm
Height 3,35 mm

Hours, minutes, central second
Date display in window, semi-instantaneous

Quick correction of date
Time setting with stop-second
Manual winding

Frequency: 28'800 vibrations per hour; 4 Hz
17 jewels
Regulator system ETACHRON
Typical power reserve: 50 hours