The two companies announced an agreement to collaborate on Swatch branded sunglasses billed as “creative, playful and lifestyle oriented”.
The new line of “Swatch The Eyes” will be rolled out in the spring.
Under the deal, the two companies will co-design eyewear collections while Safilo will develop and manufacture the eyewear.
Biel-based Swatch said the sun specs will be distributed through its global retail network and Safilo's US retail chain, to be followed by additional selected North American retailers.
“Recreating a success story in eyewear via the reinterpretation of the category is an exciting challenge,” Swatch president Nick Hayek said in a statement.
“Beyond timepieces, eyewear also belongs to those product categories that customers enjoy because they merge fun, style and emotion,” Nayek said.
“We are adding an iconic brand to our portfolio, complementing our presence in the vast and fast growing mass cool consumer segment with a unique proposition that leverages the smart, playful, innovative DNA of Swatch,” Safilo CEO Luisa Delgado said.
Swatch, known for its iconic plastic watches as well as its ownership of luxury timepiece brands, earlier tried a foray in the sunglass market in the 1990s that was later abandoned.
The fresh venture comes as Swatch is struggling to boost revenues in the face of the strong Swiss franc, which ate into the company's bottom line for 2015.
The company last week reported a net profit for the year of 1.12 billion francs, down 21 percent from 2014, while sales dipped 0.9 percent to 8.45 billion francs.