case back watch screw for IWC Portugieser Chronograph watch IWC3714

Specification: 
Materialsolid steel
Fit ForWC Portugieser such as:IW371446；IW371417；IW37149；IW371445；IW371601；IW371447；IW371602...
Quantity4 Pieces
Estimated Working Time45 Business Days

Price: USD 228.00
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