Audemars Piguet Royal Oak Concept GMT Tourbillon Instructions For Use Manual - page 12
Calibre 2913
49
48
3. W
atc
h descr
ip
tion
Eng
lish
Views of the movement
Dial side
Bridge side
Movement technical data
Total thickness : 9.90 mm
Total diameter : 35.60 mm
Frequency : 21,600 vibrations/hour (3 Hz)
Number of jewels : 29 rubies
Minimal power reserve : approx. 10 days (237 hours)
Hand-wound with a disconnecting-gear system
(about 158 turns of the winding stem)
Crown position indicator (positions : Winding,
Neutral, Time-setting)
Balance with variable inertia screws
Nivarox hairspring with Breguet end curve (Phillips)
Number of parts : 291
Specificities
Twin barrels in parallel
Locking gear Stopwork
GMT display mechanism through 2 differential
powered superimposed discs
Manual finishing on both bridges and mainplate
Manual finishing of the cut out parts (polished
bevels, grained finishing on top and Matt
"brouillé" finishing underneath)