Patek Philippe
# For Men’s
# Model:: Nautilus
# Features Following ::
# Working Chronographs & 24 Hr
# Dial Size 41 mm
# Date-Month-Day Indicator Show
# Brown Dial & Sapphire Glass
# Water Resistant Body
# Gold Body Slim dial
# Rose Gold Premium Steel Bracelet
# Open Back Machinery
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A chronograph is a watch that can measure elapsed time. It typically has three sub-dials that can be used to measure seconds, minutes, and hours.