CHRONOMASTER OPEN | 42 mm | AutomaticA bold and contemporary take on the iconic El Primero line, this Chronomaster Open features a 42 mm stainless steel case with a striking blue sunburst dial and an open heart display revealing the legendary El Primero 4061 automatic movement. Equipped with a chronograph (30 minute counter, 60 second center), tachymeter scale, and luminous hour markers and hands, this model perfectly blends sport and sophistication. Finished with a steel bracelet and
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