A revival of one of Waltham’s best-sellers, supervised & all rights licensed by the inventor of this unique line of hermetically sealed watches, H.U. Klingenberg & Vacuum Chronometer Corp. Its automatic movement is totally protected from water, moisture, pollution and temperature variations, keeping its superlative precision for a lifetime with just a few regular services. Stainless steel case with 750 (18K) gold crown and crystal holders.