Watch Case

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ETA SA Manufacture Horlogère Suisse (formerly ETA SA Fabriques d'Ebauches)
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Watch Case
Benefit: Cost Saving, Improved Performance
Main Forming Process: Metal Injection Moulding
End Use Sector: Consumer Goods
Material: Stainless Steel

Description

ETA turned to metal injection moulding for its range of SWATCH-IRONY watch cases because of cost savings compared with hot forming.

Composition: The cases, which follow the same basic design as the plastic SWATCH, are made in 316L stainless steel using a BASF moulding binder. Tolerances are generally ±0.05 mm, but must be maintained at ±0.025mm for the case holes. The cases are polished to provide a mirror finish.

ETA paid particular attention to health and safety issues, such as nickel allergy through release of nickel, when selecting the stainless steel material for the watch case.

Component Specification

Density (g/cm3): 5.8 and this increases to 7.95 after sintering

The information contained in these case studies is provided by third parties and although EPMA does its best to ensure the case studies are accurate it is not liable for any mistakes or wrong information

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