The IWC Portugieser Constant-Force Tourbillon reference IW5901-10 was made in 2019 as a limited edition of 10 pieces. It features a Platinum case and a Green dial. Inside ticks the hand-wound caliber 94800.


The IWC Portugieser Constant-Force Tourbillon reference IW5901-10 was made in 2019 as a limited edition of 10 pieces. It features a Platinum case and a Green dial. Inside ticks the hand-wound caliber 94800.
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