A legitimate phobia - my watchmaker had my chronomatic for close to a year, took it apart several times, replaced a number of parts but still couldn't get the chrono function to work properly.
My watchmaker can even service a LeCoultre Futurematic, I guess I should consider myself lucky!
And you get your watches back within 2 weeks, you are very lucky. Mine still has watches I gave him in 2018 😒