Two hundred years ago dust was one of the main concern of watch makers. Watch makers took much pains to protect watches from dust – they made watches with the back case that closed tightly and even watches with double case. Dive-Watches Such construction protected watches from water very badly.
Only in the end of the 19th century watch makers realized the necessity of protection of watches from humidity.
The first patents for waterproof wristwatches appeared in 1926. The pioneer was watch company Rolex and watch factory Mido.
The first waterproof watch was Oyster from Rolex. At the same time the company developed the first watches for diving without use of such materials as rubber or plastic.
Today like never before watch makers understand that hermetic case is an indispensable detail of any watch. Especial attention is given to watches for diving, as life of divers does depend on the reliability of their timekeepers. Montblanc Watches for diving are tested under the pressure of minimum 10 atmospheres. What is more these watches feature especial details with help of which the diver can define stages of decompression that are necessary for immersion. Dial and hands of the dive watches feature especial covering that allows the diver to see the time deep in the water.
Each dive watch must pass an individual test that confirms that the watch is 100 percent up to the highest standards of quality. It must survive high atmosphere pressure and pressure of the water, and of course it must be resistible to salt water and temperature difference. With all these conditions a dive watch must work perfectly. This makes difficulties for watch makers, but the life of a human being is priceless.
