អ្នកនិពន្ធ

Criss Lyn

ធាតុផ្សេងទៀត

ស្លាក

Popular Blogs

Overview of Diving Watches

បានប្រកាសនៅ Technology នៅOctober 04 2021 at 06:50 PM
 Diving watches are usually equipped with a dial that can be read easily at a distance of 25 cm (in the dark). The minute hand should be easily distinguishable from the hour hand. The model must be provided with an indicator of the movement of the watch, for example, a seconds hand with a luminescent mark.

for scuba diving are additionally subjected to rigorous tests. The strength of the watch mechanism is checked by means of frontal and lateral blows with a plastic hammer. The test is considered successful if after it the deviation in accuracy does not exceed +/- 60 seconds per day .

The salt water resistance test looks like this: the watch is placed in a solution with a sea salt concentration close to that in natural conditions (about 30 grams of salt per liter of water) and left for a day. Temperature 18 ° C-25 ° C. A mandatory requirement at the end of the test is complete preservation of functionality. The fastening of the strap / bracelet for durability is subjected to separate tests.

យោបល់ (0)

គ្មានការចូល
gif