Oris · Waterproof Sports Watches
Oris Aquis Chronograph 43.5mm Watch
Lower PFAS concern, watch is primarily metals and glass; no public evidence of problematic coatings.
The Oris Aquis Chronograph is a mechanical dive watch built from stainless steel, sapphire crystal, and rubber. Neither Oris nor public product specs disclose PFAS-containing coatings or treatments.
Shop Oris on Amazon →Material
Stainless steel case, sapphire crystal, rubber strap
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Uncoated safe material
Bare, uncoated material (cast iron, stainless, carbon steel, or glass) with no surface treatment to contain PFAS.
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The Oris Aquis Chronograph 43.5mm uses a stainless steel case (typically 316L), sapphire crystal (synthetic aluminum oxide), and rubber strap. Stainless steel is inert under normal skin contact and does not leach metals into food or drinking water. Sapphire crystal is chemically stable and does not degrade into microplastics or harmful compounds. The rubber strap is the primary material of concern, as synthetic rubber composition and any coatings applied to it determine longevity and potential off-gassing, particularly in high-temperature or UV-exposed conditions.
The brand's record and disclosure
Oris is a Swiss watchmaker with a publicly stated commitment to sustainability and material transparency, though formal third-party certifications (such as OEKO-TEX or material disclosure reports) are not widely published for this specific model. No recalls, litigation, or public health incidents involving Oris watch cases or straps have been documented in consumer safety databases. The brand does not provide granular material safety data sheets for component suppliers, which is typical for the luxury watch industry but limits independent verification of coating and rubber formulations.
How it compares in its category
Stainless steel sports watches are among the safest wearables in terms of material toxicity, as steel and sapphire are inert and do not off-gas or degrade into skin-absorbing compounds. This watch is comparable to competitor models (Submariner, Seamaster, Prospex) in material safety profile. The main differentiation is rubber strap quality and durability; premium manufacturers typically use higher-grade compounds that resist ozone cracking and UV degradation, reducing replacement frequency and associated waste.
If you buy it
Inspect the rubber strap regularly for cracks, discoloration, or brittleness, which indicate UV or ozone degradation; replacement straps are available from Oris and aftermarket suppliers. Avoid prolonged exposure to direct sunlight, chlorine, or high heat (above 60 degrees Celsius) to extend rubber lifespan. Rinse with fresh water after salt water or chlorinated pool use to prevent corrosion at the case-strap junction. The sapphire crystal is scratch-resistant but not shatter-proof; replace if visibly cracked to maintain water resistance rating.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Rubber strap degradation and off-gassing
Synthetic rubber straps can degrade under UV, ozone, or heat and may off-gas volatile organic compounds (VOCs) if aged or exposed to extreme conditions. Oris does not publicly disclose rubber formulation (cure accelerators, antioxidants, plasticizers); potential presence of aromatic accelerators or zinc compounds is not ruled out but not reported in recalls.
Metal nickel content (stainless steel allergic sensitization)
316L stainless steel contains approximately 8-10% nickel by composition. Individuals with nickel contact dermatitis may experience localized skin irritation after prolonged contact; Oris does not publish nickel release testing per ISO 3160-2 standards. Risk is low for most wearers but present for nickel-sensitive populations.
Case-strap junction corrosion and metal leachate
No documented cases of corrosion-induced metal leaching from Oris watch cases into skin or body. Stainless steel is corrosion-resistant, but dissimilar metal coupling (steel case to rubber strap hardware) can theoretically accelerate galvanic corrosion under salt or chlorine; this is a design-level risk, not a documented safety event for this model.
Coatings on case or dial (lead, cadmium in pigments)
Oris does not apply enamel or ceramic coatings to the stainless steel case or sapphire crystal of this model. Dial printing and lume (radium or tritium-free phosphorescent coating on indices) are typically modern non-toxic formulations in Swiss watches; no recalls or contamination reports exist for this specific watch.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More waterproof sports watches 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.