Audemars Piguet 2120 Instructions For Use Manual - page 9
Manual is about: Selfwinding MoveMent
of
13
Calibre 2121
34
35
Views of the movement
Dial side
Bridge side
Technical data of the movement
Basic thickness : 3.05 mm
Total diameter : 28.40 mm
Fitting diameter : 28.00 mm (12 ½ lines)
Frequency : 19,800 vibrations/hour (2.75 Hz)
Number of jewels : 36 rubies
Power reserve : approx. 40 hours
Automatic winding in both directions
Oscillating weight segment in 21 carat yellow
gold
" KIF Elastor " shock protection system
Adjustable stud support
Balance wheel with variable inertia
Number of parts : 254
2. Descr
ip
tion of w
atc
h
Eng
lis
h