这是附加信息
case：
stainless steel case
42.3mm diameter
Thickness 14.1mm
Transparent sapphire glass case back
Water resistance 3 bar
movement：
51011 movement
IWC-manufactured movement
automatic movement
168-hour power reserve
Vibration frequency 21600.0 times/hour (3.0 Hz)
326 parts
42 gems
Côtes de Genève, Côtes de Genève
features：
7 days power reserve
power reserve display
date display
Double-sided anti-reflective convex sapphire glass
Pellaton automatic winding system
Oscillating weight decorated with 18K gold medal
Small seconds with stop mechanism
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