Nautical Glass

H52

This clock, which uses sand, is a nautical hourglass, probably from the 16th century, whose maker is unknown and which now can be found at the Naval Museum of Madrid. Its ampule lasts approximately 30 minutes. The three places were hourglasses were put to the most use were the workshop, the pulpit and the ocean-going ships. Its most important role was in navigation. The sea-going clock or hourglass usually lasted for a half-hour. 

Measure:

Height: 18,5cm / Diameter: 10cm

Height: 7.2" / Diameter: 3.9"