Ulysse Nardin UN-320 Mode D'emploi page 2

DIVER DEEP DIVE
Ulysse Nardin plunges 1,000 meters underwater.
Ulysse Nardin's links to the sea run deep. A recognized pio-
neer of watchmaking innovation since 1846, the Manufacture's
early renown was built on the peerless precision and reliabil-
ity of its marine chronometers – essential navigational instru-
ments that helped seafarers determine longitude by means
of celestial navigation. The Manufacture is equally renowned
for what it has achieved underwater, with its solidly built and
unabashedly masculine Diver collection.
Like its immediate predecessor, the Diver Deep Dive is pow-
ered by the in-house caliber UN-320, which has a patented
silicium lever and escape wheel configuration. The balance
spring is also in silicium, a material Ulysse Nardin first intro-
duced to Haute Horlogerie.
Along with 1 km water resistance — the world record diving
depth is 701 meters — new technical standouts masterwork
include a removable titanium guard on the crown at 2 o'clock
and a helium release valve at 9 o'clock, for deep dives of pro-
longed periods of time or under saturation. The rubber strap is
a first: it has an expandable element that adjusts to changes
in wrist size during dives, caused by the compression of your
neoprene diving suit. The large bezel has 12-notched teeth for
easy manipulation, even with diving gloves.