Patek Philippe 5951 Mode D'emploi page 9

Movement features
Manually wound mechanical movement
Caliber CHR 27-525 PS Q
Ultra-thin monopUsher split-seConDs Chronograph
with perpetUal CalenDar
Diameter
height
nUmber of parts
nUmber of jewels
power reserve
balanCe
freqUenCy
balanCe spring
hallmark
27.30 mm
7.30 mm
400
27
max. 48 hoUrs
2-arm gyromax ® with 8 poising weights
21,600 semi-osCillations/hoUr (3 hz)
bregUet
patek philippe seal