Sinn 900 diapal, Instructions For Use Manual, Page: 25 / 33

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Perfect freedom from fogging
all watches in this series are water-resistant as per din 8310. But even with
watertight instruments, the air enclosed in the case contains water in a
gaseous state. and air can also penetrate the seals and acrylic glasses.
When the water vapour in the case condenses into liquid, the instruments
are impossible to read. to prevent this from happening, we have developed
the ar-dehumidifying technology. the combination of a special drying
capsule, edr seals (
e xtreme d iffusion r eduction) and a filling of protective
gas guarantee that the crystal remains free from fogging, even in difficult
conditions.
Longer service intervals
the sophisticated ar-dehumidifying technology considerably slows the aging
process of the watch's inner workings and keeps the movement functioning
properly for longer. that is why we issue a three-year warranty on all our
watches featuring ar-dehumidifying technology. When the drying capsule
is saturated, as indicated by a deep blue colour (refer to picture on the left
side), we recommend you have it exchanged so you can continue to enjoy
all the advantages of the ar-dehumidifying technology (enhanced reliability,
longer intervals between maintenance).