$15, 7-year battery, water resistant — the world's most dependable cheap watch.
Last verified: July 2026 · scored by the Made to Last method
Expected lifespan10+ yrs
Typical price$15
Cost per year$1.50/yr
Warranty~10+ yrs
The F-91W has been in production since 1989 and famously runs for years on one battery. It's water resistant, nearly indestructible for the price, and the definition of cheap-but-lasts.