Cindy Crawford is ''happily married'' to Omega watches.

The 48-year-old model has been a spokesperson for the luxury brand for almost 20 years and she says unlike the majority of relationships, she and the Swiss firm have never had a falling out.

She shared: ''We've been together so long, we're like family now.''

Cindy explained that she's known the Omega team for longer than she's known her own husband, Randy Gerber, whom she married in 1998.

She told Vogue magazine: ''You do kind of get married, and you invest in each other. We're happily married for sure. We've never even had a fight! I like knowing that there's a long-term commitment. It makes both parties look good.''

Meanwhile, Cindy claimed earlier this week that fellow model Cara Delevingne has more control over her own image than she ever did and confessed she was envious of modern day models who are able to speak to fans via social media.

She said: ''These girls, because of social media, are able to craft their own image in a way we weren't. These girls, even as they're just beginning, they're not as pigeonholed by how other people see them.

''Someone like Cara, the reason she is so cool is she gets to be who she is on social media and have that direct relationship with fans.''