Watchmaker
Also, an heurologist
Timepieces , chronometers ,
cobbler
A locksmith
glazier
mechanic
Timepieces.
Bose is able to recommend certified local repair technicians if a Bose product is broken. There are no companies with the name Bose Parts that do repairs.
The name of someone who repairs machinery is a machanic.
A glazier
Aeronautical engineer.
A person who installs repairs replaces and dismantles the machinery and heavy equipment used in almost very industry is called a machinist.
Usually a bike mechanic.