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The watchmaker company "Alcide Droz & Sons", established in St-Imier since 1864, developed the first watch attested waterproof.They called it "L'Impermeable". They had the idea to place a seal in the crown of winder, which is screwed on the counterpart. "L'Impermeable" was born: it is the very fir
Jewel bearing of a balance wheel, supported by a lyre-shaped spring. The Incabloc shock protection system is the trade name for a spring-loaded mounting system for the jewel bearings that support the balance wheel in a mechanical watch, to protect the wheel's delicate pivots from damage in the event of physical shock, such as if the watch is dropped.
Shock resistant is a common mark stamped on the back of wrist watches to indicate how well a watch copes with mechanical shocks. In a mechanical watch, it indicates that the delicate pivots that hold the balance wheel are mounted in a spring suspension system intended to protect them from damage if the watch is dropped.
A waterproof watch with 10 ATM, for instance, can withstand underwater pressure at up to 100 meters or 330 feet, meaning it’s water-resistant at up to 100 meters or 330 feet.
ISO 6425 defines such watches as: A watch designed to withstand diving in water at depths of at least 100 m and possessing a system to control the time. Diving watches are tested in static or still water under 125% of the rated (water) pressure, thus a watch with a 200-metre rating will be water resistant if it is stationary and under 250 ...
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Different brands have different standards for determining when something crosses the line from being water resistant to being waterproof, but generally speaking, if you trust the brand name (or ...
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