6204
Stainless steel Panerai, ref. 3646, dim. 47x47 mm. Three-body water-proof cushion-shaped case with wired lugs, screw back stamped with Oyster Watch Co. Geneva Swiss mark, nr. 1009928, Oyster patent crown, ref. 13. Glossy black bakelite dial with a “sandwich� construction method, luminous Arabic numerals and Radiomir Panerai signature, at the center, are two metal rivets which hold the multylayered dial togheter. Caliber 618 (Cortebert base). This watch was manufactured in 1940.