The high-frequency El Primero 21 1/100th chronograph crafted in a light yet rugged 44mm carbon fiber DEFY case with a black rubber strap. Its automatic movement features two independent high-frequency escapements beating at 50Hz for the chronograph function and 5Hz for timekeeping.
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Hublot Big Bang Integrated Blue Ceramic Ref# 451.EX.5123.EX
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Patek Philippe Nautilus Grand Complication Perpetual Calendar Watch – 5740/1G-001 



