Nautical hourglass Its predecessor the catalepsy, or water clock, may have been invented in ancient India. An antique sand timers made of solid brass, glass & sand. The antique sand timers hourglass is handmade high finishing and high-quality product. Antique hourglass is a perfect navigation, desk gifting and vintage collection item for someone special who has a really unique choice about the vintage collection. Most of the people use this product to gift someone special on special occasions.