While no longer a novelty, the IWC perpetual calendar,
link as well as its in-house tourbillon,
link continue to make for fascinating and historically important watchmaking
link still relevant to anyone who is a lover of complicated watchmaking. The new IWC Portugieser Perpetual Calendar Tourbillons look to be very much in line with the basic character of the firm – sober, intriguing mechanically, and a celebration of the joy of complex mechanics.
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