Nixon Sentry Solar Leather WatchMaking our best model better, Sentry has gone Solar. Nixon's classic thin black tie meets block party timepiece just got an upgrade with limitless potential. Now equipped with a solar cell and Lum tip skeleton hands. Wear it for one hour under office lights to power an entire day, or expose it to six hours of direct sunlight to store six months of charge! Tap into a piece of Nixon heritage with Sentry Solar, now engineered for a brighter tomorrow.