PROCESS 01
A clean bench is a technical choice
Dust, fibers and fingerprints are not merely visual blemishes. Particles can interfere with delicate pivots, oils and contact surfaces. As a result, assembly work often takes place under controlled conditions with magnification and purpose-made tools. A clean station is necessary but does not guarantee that the entire facility is a sterile cleanroom.
Different manufacturers organize this work differently. Some operations are performed by watchmakers from the start; others rely on supplied movement modules or partially assembled subassemblies.
PROCESS 02
Building a mechanical movement
Plates and bridges hold the train of wheels. The technician must locate pivots without bending them, secure components with appropriate torque and control lubrication at specific interfaces. The balance and escapement must be installed so the movement can start and run.
At this stage, an apparently small handling error may damage a critical surface. Magnification matters because a slight misalignment may be invisible to the naked eye but serious for performance.
PROCESS 03
The dial side and case
Once the movement is prepared, the dial and hands are fitted. Hands must clear each other and any dial features while displaying accurately at relevant positions. The assembly is then mounted in a case with the crown stem and seals appropriate to its design.
A case is not simply a display box. Its construction affects shock protection, dust exclusion, service access and water resistance. Bracelet attachment is a later mechanical operation with its own inspection requirements.
PROCESS 04
Regulation and final inspection
A mechanical movement's rate can vary in different positions, and an assembler may adjust it during or after movement completion. Final tests can include reserve, functions, visual inspection and pressure or water-resistance checks depending on the model.
Tudor's factory documentary and the Mühle assembly video show different ways to coordinate handwork, logistics and inspection. Rather than asking whether the process is purely handmade, look for how the manufacturer controls the outcome.
PROCESS 05
What to look for when watching
Watch the operator's tool contact, component handling, inspection posture and movement from station to station. Automated handling helps with consistency, while bench operations still require expertise. Both are legitimate ingredients of precision manufacturing.
A marketing film is never a substitute for the exact technical sheet or a competent service assessment. It shows a process, not a guarantee that the watch in a retailer's listing received every visible step.
Factory sources and further reading
These linked sources illustrate methods used by their particular makers. They are not universal manufacturing standards, and the publishers retain their own footage and images.