Heuer. A chrome finished 8-day dashboard timepiece
Navia, Case No.20874, Circa 1963
15-jewel Arogno Cal.28 8 day manual wind movement with matt black dial with luminous Arabic hour numerals and printed outer minute divisions, dial signed Navia Heuer 8 Days, luminous sword hands and white centre seconds hand, hacking function for centre seconds, chrome plated round case with oversized knurled winding crown at 12, screw down case back signed Ed Heuer inside, integrated mounting flange with mounting holes at 2, 4, 8 and 10, case, dial and movement signed 
55mm. Excellent cosmetic and working condition!!!  Thanks for looking!!

FOOTNOTES

  • Designed to be fitted to a boat dashboard, the Navia features a waterproof type case to protect the internals from nautical environments. The movement is the same as fitted to the Master-Time, the 15-jewel 8 day Arogno Cal.28 and the piece would make a fitting addition to the dashboard of a Riva Aquarama or other classic wooden hulled speedboat.