SINN board-stop watch (dashboard), Switzerland around 1985, blackened metal case, case back 3-times screwed down, inside turning bezel with 60-minutes graduation, black dial, Arabic luminous numerals, central luminous hands for minutes & second, hour-counter at 6, rhodium plated movement calibre 430 Baumgartner, 9 jewels, diameter approx. 57 mm, overhaul recommended at buyer's expense, otherwise condition 2