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At the core of Concept One Solar is the Swiss Made Ronda 215 solar movement, combining light-powered efficiency with up to 8 years of battery life. Other high-performance features include double antishock protection and magnetic resistance, a curved dial in black, a 39mm stainless steel case, anti-scratch protection on the stainless steel bezel and a changeable stainless steel bracelet.
At the core of Concept One Solar is the Swiss Made Ronda 215 solar movement, combining light-powered efficiency with up to 8 years of battery life. Other high-performance features include double antishock protection and magnetic resistance, a curved dial in black, a 39mm stainless steel case, anti-scratch protection on the stainless steel bezel and a changeable stainless steel bracelet.