





1960s IWC Ingenieur 666AD "Türler"
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The 666AD is the foundational reference of the Ingenieur line, designed to withstand high magnetic fields. This particular example is double-signed by "Türler," the prestigious Zurich-based retailer, adding immense rarity and "big city" provenance. Inside beats the Pellaton-winding Calibre 8531, widely regarded as one of the finest automatic movements ever engineered.
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