Swatch · Waterproof Smartphone Cases
Swatch SEA WASP
Plastic watch with no coating or water-repellent finish on record.
The Sea Wasp is a plastic watch case and strap with no water-repellent coating on record. The brand has no PFAS statement on record. Plastic and resin are not materials linked to PFAS.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Plastic/resin watch case and strap
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What Swatch SEA WASP is made of, ingredients and materials
The Swatch Sea Wasp uses injection-molded plastic (likely polystyrene or acrylic copolymer) for the case and elastomeric polymer (rubber or synthetic rubber blend) for the strap. These are inert, non-porous materials commonly used in mass-market watches and do not involve ceramic glazes, coatings, or metal hardware that typically introduce heavy metals or leaching risks. Plastic watch bodies have no established pathway for chemical migration into skin or food; the primary concern is physical durability and surface wear rather than chemical release.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Polymer degradation and microparticle shedding
Prolonged UV exposure or heat cycling may cause the plastic case or rubber strap to become brittle, discolor, or shed microparticles during normal wear. This is a material aging process inherent to inexpensive polymers and not acutely toxic, but can be minimized by avoiding extreme conditions.
Skin irritation from strap contact
Synthetic rubber or elastomer straps can accumulate sweat, bacteria, and residual mold in damp conditions, particularly in warm climates or after water exposure. Individuals with sensitive skin or rubber allergies may experience localized irritation; regular cleaning mitigates this risk.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Heavy metals
No documented lead, cadmium, or other heavy-metal contamination in Swatch plastic watch dyes or pigments has been reported. Injection-molded plastic colorants in mainstream watch production are subject to loose but functional supply-chain oversight, though full transparency is absent.
Source, FDA ↗Formaldehyde / VOCs
Modern injection-molded ABS or polystyrene watch cases are unlikely to off-gas formaldehyde or significant VOCs after initial manufacturing cure. Any residual monomer or processing solvent would dissipate rapidly and is not a credible exposure route for wearing apparel.
Source, ATSDR ↗Nickel or other metal allergenic compounds
The Sea Wasp plastic case and rubber strap contain no reported metal components; metal watch crown and caseback hardware would be minor and not typically skin-contact surfaces. Risk of allergic sensitization is very low.
The full breakdown
The brand's record and disclosure
Swatch, a subsidiary of The Swatch Group, does not publicly issue detailed chemical or material safety disclosures for individual watch models and maintains silence on PFAS use in polymers. The company holds no known formal certifications (ISO 14001, Cradle-to-Cradle, etc.) specific to chemical safety in watches. No major recalls, lead contamination events, or regulatory action against Swatch watches for toxic substances have been documented in consumer databases or regulatory filings.
How it compares in its category
Swatch watches occupy the mainstream consumer price tier and are comparable in material simplicity to other fashion plastic watches from brands like Timex or Fossil. Unlike vintage or artisanal watches, they avoid soldered metal cases, cadmium-plated bezels, and hand-painted dials. Plastic and rubber-strap watches are inherently lower-risk than metal watches with nickel-plated or brass components, which can sensitize or irritate skin.
If you buy it
Clean the strap periodically with mild soap and water to prevent bacterial buildup in seams, especially if worn in saltwater (despite the 'Sea Wasp' name, check water-resistance rating before submersion). Avoid prolonged exposure to direct sunlight or heat above 60C (140F), which can degrade polymer flexibility. Replace the strap if it becomes sticky, discolored, or develops cracks, as degraded rubber may trap moisture and irritants. Store in a cool, dry place and do not soak in harsh chemicals or solvents.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Swatch has made none
Formulations change between production runs, so check the current label. How we grade.
More waterproof smartphone cases grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.