Emmanuel, known as quattro on WatchProSite, offers an unparalleled look into the micro-mechanics of Patek Philippe calibers. His original post meticulously dissects the intricate beauty and critical functions of individual movement components, inviting collectors to appreciate the artistry often hidden within the watch case. This deep dive into Patek Philippe's engineering prowess highlights why the smallest parts are just as vital and aesthetically compelling as the complete movement.
We love watches and movements, but individual parts have a beauty of their own: here is the proof.
All the parts shown below belong to Patek Philippe calibers.
A/ CHRONOGRAPH COMPLICATION
CLUTCH LEVER
Serves to engage or disengage the chronograph mechanism

CHRONOGRAPH HAMMER
Serves to reset the chronograph hands

SPLIT-SECONDS CLAMP SPRING
Keeps the split-seconds clamp in tension when activated
B/ MINUTE REPEATER COMPLICATION
MINUTE REPEATER HAMMERS
Strike the hours and minutes gongs of the minute-repeater mechanism

INERTIA FLYWHEEL BRIDGE
Bears the upper pivot of the strikework’s inertial flywheel
QUARTER RACKServes to chime quarter-hours by means of pallets activating the hammers

STRIKEWORK BRIDGE
Bears the pivots of the strike work gear train
C/ TOURBILLON TOURBILLON BRIDGE
Bears the upper pivot of the tourbillon carriage

GOLD THIRD WHEEL
Going train wheel meshing with the tourbillon carriage
D/ CALENDAR COMPLICATION MONTHS CLICKS SPRING
Keeps in position the pawl associated with the months lever

48-MONTH CAM
Takes account of the variable duration of months and leap years
WEEKS LEVERTriggers the week jump during the night between Sunday and Monday
credit to all images: Patek Philippe
Thanks for looking.
Best, Emmanuel