Sinn EZM 3, Instructions For Use Manual, Page: 15 / 27

15
The diving watch EZM 3 is a mechanical watch made for the toughest diving
jobs. This is because you can always rely on classical mechanics anywhere
where a watch with a quartz movement could pose a risk due to electronic
interference or failure of the internal power supply. This is especially true
when these mechanics are protected by sophisticated Sinn technology.
Filling the case with a protective gas keeps ambient oxygen and other
corrosive gases at bay. the integrated drying capsule with its copper sulfate
filling also absorbs the inevitable humidity which diffuses into the watch. the
combination of carefully selected material dimensions and qualities together
with perfect workmanship and complex sealing measures – such as double
o-rings on the screwable crown – permits the approved use of the diving
watch ezm 3 for a diving depth of 500 meters, corresponding to a pressure
of 50 bar. this is an extreme performance value for which magnetic Field
protection is crucial: an additional, solid soft iron sheath around the move-
ment protects the accuracy of the watch up to magnetic field influences
amounting to 80,000 a / m. all functions and printing on the dial not relevant
to diving are muted in red.