Technical Data - Ulysse Nardin UN-815 Mode D'emploi

TECHNICAL DATA

Type
Size
Diameter of movement 25.60 mm
Height of movement
Jewels
Oscillations
Power reserve
Display
Watch winders
6
Mechanical self-winding movement
11
1/2'''
3.60 mm
21
28,800 V/h (4Hz)
Approximately 42 hours
Hour and minute hands in the
center.
Seconds.
Date (some models).
Min. 650 rotations/day to maintain
power.
Winding of movement : bidirectional.