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Here>>https://www.stampit.org/en/page/795

The Octo Finissimo Automatic in patek philippe calatrava yellow gold comes equipped with Caliber BVL 138, an automatic winding movement that features a platinum micro-rotor and a small seconds link display. It measures a mere 2.23mm thick and 36.60 mm in diameter with a healthy power reserve link of 60 hours.

While link no longer a novelty the IWC perpetual link calendar as well as its in-house tourbillon continue to make for fascinating and historically important watchmaking 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 link character of the firm sober intriguing mechanically and a celebration of the joy of complex mechanics.