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Application

Stainless steel strip for watches and eyewear

Springs, temples and small precision components.

Typical thicknesses 0.10–0.30 mmTypical widths 5–50 mmFinishes 2R/BA • 2HAlso on spools

Watchmaking and eyewear

In fine mechanics, stainless strip becomes springs, hinges, temples, nose pads and small parts: tiny pieces that demand precision, a careful finish and corrosion resistance.

In fine mechanics the parts are small but visible: springs, hinges, temples and plates need tight tolerances and a surface that stays bright after polishing and treatments. 3S supplies AISI 316L stainless strip in the bright annealed 2R/BA finish, or AISI 301 and 304 in the work-hardened 2H condition for spring components. Thicknesses from 0.05 mm and narrow widths from 3 mm, with EN or ASTM tolerances, are verified by 100% dimensional control. We also consider small batches and light spools from 15 kg, suited to niche production and precision work. Edges can be deburred, giving parts that are safer to handle and easier to finish.

Where it is used

  • Watchmaking
  • Eyewear
  • Jewellery and accessories
  • Precision instruments

Recommended grades

Supply

ParameterRangeNotes
Typical gradesAISI 316L bright annealed (BA) for skin-contact parts, AISI 301 and 304 work-hardened for springs and elastic partsOther grades on request
ThicknessAnnealed 0.05 – 0.70 mm
Work-hardened 0.05 – 2.50 mm
Typical for this application: 0.10 – 0.30 mm
Width3 – 1250 mmTypical: 5 – 50 mm
FinishesAnnealed 2R / BA • Work‑hardened 2HCalibrated mechanical properties
FormatsStrip • Narrow strips • Spools • SheetsSheets cut to size up to 1000 mm
SpoolsFrom 15 kg to 1500 kgID 50–400 mm • traverse or parallel winding

Tolerances according to EN ISO 9445 or customer specification. 3.1 certificates on request.

Frequently asked questions

Request a quote
Can you supply small quantities of strip?
Yes, we also consider small batches, with spools from 15 kg or cut lengths, suited to the limited runs typical of watchmaking and eyewear. Tell us quantities and dimensions and we will check feasibility.
Is the BA finish suitable for visible parts?
The 2R/BA finish has a bright, uniform surface, an excellent base for polishing and subsequent decorative treatments on visible components. Our 100% dimensional control ensures consistency from part to part.