I.W.C. Portugieser Yacht Club Chronograph screw down S/S crown IW390213

These are new I.W.C. Portugieser Yacht Club Chronograph screw down S/S crown w/tube, case # IW390213. Tap 10 (0.90 mm). The crown is approx. It is around 4.26 mm in length and approx. 7.05 mm total length.

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