Why an additional strap for the DS Super PH500M ?

The striking DS Super PH500M is sure to attract attention thanks to its retro style and orange dial. A number of functional features such as its magnetic field-resistant NivachronTM balance spring and water resistance of up to 500 m make this diver's watch the ideal companion on every journey – even underwater. Learn more about the DS Super PH500M : https://www.certina.com/ch-en/watch/ds-super-ph500m/C0374071728010 More videos about the DS Super PH500M : https://www.youtube.com/watch?v=dyqyTThm-G4 Subscribe to Certina channel: https://www.youtube.com/user/certinaofficial Official website: https://www.certina.com Facebook: https://www.facebook.com/certina Instagram: https://www.instagram.com/certina