0c31b30b-1fad-4f02-98cc- 。Vintage 1970s Casio digital wristwatch from the early CasioTron era. Made in Japan with a stainless steel case marked S-16. Features time, calendar, stopwatch, and memory functions. The watch is running and keeping time with a clear, readable display. Shows honest vintage wear including surface scratches to the case and crystal consistent with age. No cracks to the display. Fitted with a vintage Speidel USA expansion bracelet that is period-correct and shows normal wear. Watch only, no box or papers. Please review photos for condition details.