Step
01
Day 01
RIGOR FROM THE VERY BEGINNING
Reception of the movements
Verification of the engraving numbers
Placement of the movement in a 5-slot clasp
The parts remain in an enclosure at 23°C for 12 hours
The COSC certification
The COSC Label
12 to 20 days of testing, 65 handlings during the process, 7 elimination criteria, and checks every 24 hours, 7 days a week. The COSC certification must be earned. The COSC Certified Chronometer label is the result of unwavering precision, with every second accounted for. Certified with passion and no exceptions.
The movements undergo highly demanding tests, in various positions and at different temperatures, in order to determine their precision.
An extremely demanding process
Understanding certification
Step
02
Days 02 to 10
TIME MEASUREMENT
Time measurement
Winding
Placement in position
These operations are carried out in 24-hour cycles
The position changes daily: 6 o’clock, 3 o’clock, 9 o’clock, then the dial facing up and finally the dial facing down
Step
03
Days 11 to 13
A QUEST FOR EXCELLENCE
Time measurement
Winding
Placement of movements dial up
Successively placed in chambers at 8°, 23°, then 38° for 24 hours
Step
04
Days 14 to 15
THE LAST MEASUREMENT
Time and winding measurement
Positioning of movements at 6 o'clock
Step
05
Days 16 to 20
METICULOUS ANALYSIS OF THE RESULTS
Assessment of compliance with the 7 certification criteria
Creation of the “COSC-certified chronometer” certificate
Returning the movements to clients
The “certified chronometer” label
Our label is reserved for high-precision movements, attesting to their reliability with regard to particularly demanding criteria.
