In the past, the inability to calculate the latitude and longitude of the seas caused many ship accidents. Many efforts have been made to eliminate this situation for many years and as a result of these efforts, the so-called marine navigation devices were developed. These devices, which are now known as marine watches, are accurate measurements of longitude degrees in the seas and are used to calculate the exact local time.

These watches, which are used by seafarers in the seas, are highly sensitive and special production watches showing accurate results even under different conditions. These devices are designed to be sensitive to the movement of waves. Thus, the products that allow the real-time measurement on ships and possible problems do not arise.