PROCESS 01
Before the first gear turns
A watch factory begins with geometry and materials. Plates support the movement, bridges hold pivots, wheels transmit rotation, and the balance with its spring establishes the rhythm. These parts require different manufacturing approaches. A plate can be machined from stock while gears may be stamped and then finished; other shapes demand specialized turning, grinding or forming equipment.
Production engineers design not just a part, but a reliable way to make the part repeatedly. Fixtures, cutter wear, material behavior and measurement strategy influence whether two components made days apart will work alike.
PROCESS 02
Machining and stamping in context
CNC machining removes material with precisely guided tools. In the official Mühle-Glashütte tour, a high-speed milling machine shapes a brass base support and automatically changes tools. The machine's speed alone says nothing about whether the finished part meets tolerance: that requires process controls and inspection.
A fine-toothed wheel or flat spring may instead begin with stamping, cutting or specialized forming. Operators then remove burrs and inspect the surfaces that will bear load. It is important to avoid assuming that all movement components are milled from solid billets.
PROCESS 03
The regulating organ is different
A balance spring must provide carefully controlled elasticity. Its performance depends on geometry, material, attachment and interaction with the balance. Making and shaping such springs is specialized work—very different from turning a screw or polishing a bridge.
In the Time+Tide Tudor supply-chain documentary, the discussion of hairspring production illustrates why the most delicate parts receive extraordinary attention. Differences in the spring's behavior become differences in the watch's daily rate.
PROCESS 04
Finishing, cleaning and inspection
Machine production leaves handling and material residues. Components move through cleaning, finishing, inspection and sometimes surface treatment. Decorative work such as circular graining may be applied to visible plates, while functional surfaces have engineering requirements independent of decoration.
Microscopic inspection and measurement can reveal flaws that a viewer watching a dramatic machine sequence might never see. The finished watch is only as dependable as the interfaces between parts.
PROCESS 05
The watchmaker's question
When you next see a film of gears and plates, try identifying what is being manufactured, what will contact it, and how the maker will know it is acceptable. 'In-house' and 'Swiss-made' are not substitutes for understanding an actual production process.
These demonstrations are about different manufacturers and different reference periods. They should never be interpreted as the exact production route of every item in a brand's catalog.
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.