Certina DS-1 Big Date Powermatic 80Certina DS 1 Big Date Powermatic 80 The Certina DS 1 Big Date Powermatic 80 is a sophisticated timepiece that perfectly balances classic elegance and modern functionality. Featuring a 41 mm stainless steel case and a captivating blue sunray dial, it showcases a bold yet refined aesthetic. The oversized date display at 6 oclock adds practicality and style, while the Powermatic 80 automatic movement ensures precise timekeeping with an impressive 80 hour