Precision machining of a middle case

02 — MANUFACTURE

Watch cases & middle cases

From machining to final inspection, a controlled progression transforms the drawing into a finished part.

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02

Machining

The material is precisely machined according to the strategy defined by the engineering office. Successive operations progressively reveal the part’s volumes.

Machining a component under coolant
03

Blanks & refinement

The first parts validate geometry, thicknesses, radii and interfaces. Each adjustment prepares the quality of the final series.

First middle-case blank
Middle-case blank after a machining pass
Profile and crown inspection
Refinement of internal components
04

Finishing & engraving

Surfaces, edges and details are carefully treated. Engraving and markings complete the part in accordance with the technical drawing.

Engraving detail on a middle case
Marking on a watch component
Finished middle case with engraving
05

Finished parts & inspection

Assembled components are inspected from several angles. Appearance, fit and dimensional conformity are verified before final approval.

Series of finished middle cases for inspection
Visual inspection of finished middle cases
Different middle-case finishes
Finished piece

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